DIN-En-10083-1-2006 - Steels for Quenching and Tempering - Delivery Conditions

March 27, 2018 | Author: Sebastian Pop | Category: Heat Treating, Steel, Structural Steel, Forging, Metalworking
Share
Report this link


Comments



Description

DEUTSCHE NORMJanuary 2007 DIN EN 10083-3 ICS 77.140.10 D Steels for quenching and tempering – Part 3: Technical delivery conditions for alloy steels English version of DIN EN 10083-3:2007-01 Vergütungsstähle – Teil 3: Technische Lieferbedingungen für legierte Stähle Englische Fassung DIN EN 10083-3:2007-01 Normen-Download-Beuth-Presswerk Krefeld-KdNr.6963824-LfNr.3613261001-2007-05-07 16:10 ww w. bz Document comprises 58 pages © No part of this standard may be reproduced without prior permission of DIN Deutsches Institut für Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany, has the exclusive right of sale for German Standards (DIN-Normen). English price group 17 www.din.de www.beuth.de fx !,vS:" 04.07 w. c 9834823 om Supersedes DIN EN 10083-3:2006-10 DIN EN 10083-3:2007-01 National foreword The responsible German body involved in its preparation was the Normenausschuss Eisen und Stahl (Steel and Iron Standards Committee), Technical Committee 05/1. Amendments This standard differs from DIN EN 10083-1:1996-10, DIN EN 10083-3:1996-02 and DIN 17212:1972-08 as follows: a) This series of standards (DIN EN 10083-1 to -3) has been thematically restructured. Previously, the three parts were divided up as follows : Part 1: Technical delivery conditions for special steels Part 2: Technical delivery conditions for unalloyed quality steels Part 3: Technical delivery conditions for boron steels The three parts are now divided up in a more appropriate manner: Part 1: General technical delivery conditions Part 2: Technical delivery conditions for non-alloy steels Part 3: Technical delivery conditions for alloy steels b) Flame and induction hardening steels are now included in the scope of this standards series. c) Grades 38CrS2, 46CrS2, and 36CrNiMo4 have been deleted, while grades 35NiCr6, 39NiCrMo3 and 30NiCrMo16-6 have been added. Normen-Download-Beuth-Presswerk Krefeld-KdNr.6963824-LfNr.3613261001-2007-05-07 16:10 d) Manufacturers can now verify hardenability by calculation where this is possible. e) The standard has been editorially revised. The following corrections have been made to DIN EN 10083-3:2006-10: a) The national foreword has been corrected. Previous editions ww 2 DIN 1661: 1924-09, 1929-06 DIN 1662: 1928-07, 1930-06 DIN 1662 Supplement 5, Supplement 6, Supplement 8 to Supplement 11:1932-05 DIN 1663: 1936-05, 1939x-12 DIN 1663 Supplement 5, Supplement 7 to Supplement 9:1937x-02 DIN 1665: 1941-05 DIN 1667: 1943-11 DIN 17200 Supplement: 1952-05 w. bz fx This restructuring was achieved by including the following general information – which was previously given in all three parts – in the first part only: figures showing the location of test pieces and samples; and the Annexes “Ruling sections for mechanical properties”, “Other relevant standards”, “Dimensional standards applicable to products complying with this European Standard”, and “Non-metallic inclusion content”. However, the diagrams and information in annexes specific to unalloyed or to alloyed quality steels have been left in the relevant part, namely Part 2 or Part 3, respectively. w. c om This standard has been prepared by ECISS/TC 23 “Steels for heat treatment, alloy steels and free-cutting steels – Qualities and dimensions” (Secretariat: Germany). DIN EN 10083-3:2007-01 Normen-Download-Beuth-Presswerk Krefeld-KdNr.6963824-LfNr.3613261001-2007-05-07 16:10 ww w. bz 3 fx w. c om DIN 17200: 1951-12, 1969-12, 1984-11, 1987-03 DIN 17212: 1972-08 DIN EN 10083-1: 1991-10, 1996-10 DIN EN 10083-3: 1996-02, 2006-10 Normen-Download-Beuth-Presswerk Krefeld-KdNr.6963824-LfNr.3613261001-2007-05-07 16:10 4 ww DIN EN 10083-3:2007-01 w. bz fx w. c — This page is intentionally blank — om EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM ICS 77.140.10 EN 10083-3 August 2006 English Version Steels for quenching and tempering - Part 3: Technical delivery conditions for alloy steels Aciers pour trempe et revenu - Partie 3: Conditions techniques de livraison des aciers alliés This European Standard was approved by CEN on 30 June 2006. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Normen-Download-Beuth-Presswerk Krefeld-KdNr.6963824-LfNr.3613261001-2007-05-07 16:10 ww w. bz EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, 36 © 2006 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. fx w. c B-1050 Brussels Vergütungsstähle - Teil 3: Technische Lieferbedingungen für legierte Stähle om Supersedes EN 10083-3:1995 Ref. No. EN 10083-3:2006: E ..............1 10.........................................................................................................................8 Internal soundness ...................................................10 Preparation of samples and test pieces ....1 6.................................................................................................3 10..................... bz fx w.......................................................................1 7...........................................................................................................................54 2 w.................................4 Scope .......................................7 Requirements .................................................................................................................................................................................2 7..........10 Location and preparation of samples for hardness and hardenability tests .................................................................................8 Surface quality ........................8 Structure ........2 8...........................................................................................................................................................................................................................................6 Deoxidation ..........................................................................................................................8 Dimensions.....................EN 10083-3:2006 (E) Contents Foreword..........5 Designation ........................................................................................................................7 8 8.................10 Selection and preparation of samples for chemical analysis ....................................................................................................................5 Information to be supplied by the purchaser ..........................................10 Identification of samples and test pieces ................................................................................................. tolerances on dimensions and shape .......1 5..................................2 10......................................................................53 Bibliography ...............................................................................................4 7 7...............10 Chemical analysis............................................................................ c Classification and designation.. hardenability and mechanical properties ......................7 Cast separation ...................................................................................5 Options ........................................................50 Annex B (informative) Comparison of steel grades specified in this European Standard and ISO 683-1:1987 and other steel grades previously standardized nationally...........................................................................................................52 Annex C (informative) Reference values for the maximum diameter at a certain core hardness of steels with boron ...............................................10 Test methods..............................................................6 7.........................................................5 Mandatory information .................................................................................5 7.........................................................4 Terms and definitions .............................10 Location and orientation of samples and test pieces for mechanical tests...............................5 Classification.....1 9.......................................3 1 2 3 4 4...4 11 Annex A (normative) Options .1 8............................1 4..........................................................................................10 Hardness and hardenability tests .................................3 6...........9 Tests to be carried out for specific inspection.....................................................................................................................2 5 5........................3613261001-2007-05-07 16:10 ww 10 10...............................7 Machinability ........................................................................................2 6 6.................................................................................3 7................................................................................................................................6 General...................................3 9 9.........11 Normen-Download-Beuth-Presswerk Krefeld-KdNr..............................................................................11 Retests .........2 9................................................. packaging...............................................................................................................10 Mechanical tests ........................8 Shearability of semi-finished products and bars .............................................................................................................................................................9 Inspection .................................................................................................................6 Manufacturing process ..........................................................................4 Normative references ............................................................................................................................7 Heat treatment and surface condition at delivery .............11 Marking......6963824-LfNr..............................................7 Chemical composition............................................................................................................................................................................................................2 6........................................................................................................................................................................................................ labelling.9 Frequency of testing ................................................................4 7..............................................5 om Page ...........9 Testing procedures and types of documents.......................................................3 9.............................................................................. Italy. alloy steels and free-cutting steels . Denmark. Luxembourg. Norway. Lithuania. c om 3 . Germany. Flame and induction hardening steels – Quality specifications According to the CEN/CENELEC Internal Regulations. and conflicting national standards shall be withdrawn at the latest by February 2007. the national standards organizations of the following countries are bound to implement this European Standard: Austria. Estonia. Iceland. Switzerland and United Kingdom. bz fx w. either by publication of an identical text or by endorsement. Slovenia.6963824-LfNr. the secretariat of which is held by DIN. Romania. Quenched and tempered steels – Part 2: Technical delivery conditions for unalloyed quality steels EN 10083-3:1995. This European Standard shall be given the status of a national standard. Portugal. Czech Republic. This document supersedes EN 10083-3:1995. Cyprus. Sweden. Quenched and tempered steels – Part 1: Technical delivery conditions for special steels EN 10083-2:1991 +A1:1996. Latvia. France.3613261001-2007-05-07 16:10 ww w.EN 10083-3:2006 (E) Foreword This document (EN 10083-3:2006) has been prepared by Technical Committee ECISS/TC 23 “Steels for heat treatment. Hungary. Netherlands. Ireland. Normen-Download-Beuth-Presswerk Krefeld-KdNr.Qualities and dimensions”. at the latest by February 2007. Slovakia. Malta. Greece. Together with Part 1 and Part 2 of this standard this part 3 is a revision of the following European Standards: EN 10083-1:1991 +A1:1996. Belgium. Poland. Spain. Finland. Quenched and tempered steels – Part 3: Technical delivery conditions for boron steels and of EURONORM 86-70. wide flats and sections – Part 2: Plate and wide flats EN 10204. This document does not apply for bright steel products. Metallic materials – Charpy impact test – Part 1: Test method EN 10083-1:2006. w. lines 2 to 6. e. only the edition cited applies. bz Normative references In special cases. For dated references. hot-rolled strip and sheet/plate. fx The requirements for mechanical properties given in this document are restricted to the sizes given in Table 8. Clause 1). wide flats. bars (see NOTE 2 in EN 10083-1:2006. flame or induction hardened machine parts. Steels for quenching and tempering – Part 1: General technical delivery conditions EN 10160. specifies the technical delivery requirements for:       semi-finished products. Clause 1). slabs (see NOTES 2 and 3 in EN 10083-1:2006. Definition and classification of grades of steel EN 10027-1. Designation systems for steels – Part 2: Numerical system EN 10045-1. variations in these technical delivery requirements or additions to them may be agreed at the time of enquiry and order (see Annex A). the latest edition of the referenced document (including any amendments) applies.6963824-LfNr. in addition to Part 1. Metallic materials – Tensile testing – Part 1: Method of test at ambient temperature EN 10020. For undated references. and in one of the surface conditions given in Table 2. c om . Clause 1). Designation systems for steels – Part 1: Steel names EN 10027-2. rod. hot formed. For bright steel products EN 10277-1 and EN 10277-5 2 Normen-Download-Beuth-Presswerk Krefeld-KdNr. Delivery requirements for surface condition of hot-rolled steel plates. forgings (see NOTE 2 in EN 10083-1:2006. Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection method) EN 10163-2. The steels are generally intended for the fabrication of quenched and tempered. billets. Metallic products – Types of inspection documents ww 4 w. EN 10002-1. blooms. manufactured from the direct hardening alloy steels for quenching and tempering and the alloy flame and induction hardening steels and supplied in one of the heat treatment conditions given for the different types of products in Table 1.3613261001-2007-05-07 16:10 The following referenced documents are indispensable for the application of this document.g.EN 10083-3:2006 (E) 1 Scope This part of EN 10083. NOTE apply. 2. B. F.6963824-LfNr. c om 5 . bz 4. Steels – Determination of depth of decarburization (ISO 3887:2003) EN ISO 6506-1.2 Designation 4. 5. Information to be supplied by the purchaser 5.EN 10083-3:2006 (E) EN 10221. 4 Classification and designation Normen-Download-Beuth-Presswerk Krefeld-KdNr. For the steel grades covered by this document. D. Metallic materials – Rockwell hardness test – Part 1: Test method (scales A. Steels – Micrographic determination of the apparent grain size (ISO 643:2003) EN ISO 3887. G.1. Surface quality classes for hot-rolled bars and rods – Technical delivery conditions CR 10261.2. fx w. Non destructive testing – Ultrasonic testing of steel bars EN ISO 377. Steel – Hardenability test by end quenching (Jominy test) (ISO 642:1999) EN ISO 643. the steel names as given in the relevant tables are allocated in accordance with EN 10027-1. Steel and steel products – Location and preparation of samples and test pieces for mechanical testing (ISO 377:1997) EN ISO 642. T) (ISO 6508-1:2005) EN ISO 14284.1 Mandatory information See EN 10083-1:2006. Steel and iron – Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996) 3 Terms and definitions For the purposes of this document. the steel numbers as given in the relevant tables are allocated in accordance with EN 10027-2. the terms and definitions given in EN 10083-1:2006 apply. Metallic materials – Brinell hardness test – Part 1: Test method (ISO 6506-1:2005) EN ISO 6508-1:2005. N.3613261001-2007-05-07 16:10 ww 5 w.2 Steel numbers All steel grades are classified according to EN 10020 as alloy special steels. For the steel grades covered by this document.1 Classification 4. E. ECISS Information Circular 11 – Iron and steel – Review of available methods of chemical analysis EN 10308. C. H. K.1 Steel names 4. Normen-Download-Beuth-Presswerk Krefeld-KdNr.20x8000 EN 10083-3 – 25CrMo4+A EN 10204 . c) any verification of the product analysis (see 7.2 Options a) any particular heat treatment condition (see 6.5 and A.20x8000 EN 10083-3 – 1.2). w.3).2 and A.4.6963824-LfNr.3613261001-2007-05-07 16:10 EXAMPLE 20 round bars with the nominal diameter 20 mm and the nominal length of 8000 mm according to EN 10060 made of steel grade 25CrMo4 (1.4 and A. b) any particular surface condition (see 6.1). h) any requirement for internal soundness (see 7.1 General 6 20 round bars EN 10060 . .3).1 The manufacturing process of steel and of the products is left to the discretion of the manufacturer with the restrictions given by the requirements in 6. 20 round bars EN 10060 .6). i) j) any requirement relating to surface quality (see 7.2 to 6.5).4). k) suitability of bars and rod for bright drawing (see 7.3) and if agreed the information about calculation of the hardenability (see 10. e) any verification of mechanical properties of reference test pieces in the quenched and tempered (+QT) condition (see A. the supplier shall act in accordance with the basic specification. +HH. g) any requirements for the verification of non-metallic inclusion content (see 7.6.5).6). inspection certificate 3.4).6.3.3. bz Manufacturing process m) inspection of surface condition and dimensions shall be carried out by the purchaser at the manufacturer's works (see 8.1.4). f) any verification of fine grain size (see 7.4 and A.1 or ww 6 6.7218) according to EN 10083-3 in the heat treatment condition +A.6.2. n) any requirement concerning special marking of the products (see 11 and A.7218+A EN 10204 .3.3. +HL) (see 7.1 as specified in EN 10204.6. l) any requirement relating to removal of surface defects (see 7.1.3.2).3). d) any requirement to the hardenability (+H. fx any requirement regarding the permissible depth of decarburization (see 7.EN 10083-3:2006 (E) 5.1. If the purchaser does not indicate his wish to implement any of these options. c om A number of options are specified in this document and listed below.2). w. hardenability and mechanical properties Table 1 shows the combinations of usual heat-treatment conditions at delivery. 6. fx 7 w.6963824-LfNr.3. product forms and requirements as specified in Tables 3 to 8.1. 7. hot worked. steel grade 30CrNiMo8). the products shall be delivered with one of the particular surface conditions given in Table 2. c om .1. the products shall be delivered in the untreated.3 7. condition.2 Chemical composition 7.2 Particular heat treatment condition If so agreed at the time of enquiry and order. lines 3 to 6.1 Chemical composition. i.1. NOTE Depending on the product shape and dimensions.3 Heat treatment and surface condition at delivery 6.3 Particular surface condition If so agreed at the time of enquiry and order. The product analysis shall be carried out when specified at the time of the order (see A.2 Deoxidation All steels shall be killed. +HH) hardenability requirements.1.5).2. the steels may be supplied with or without hardenability requirements (see Table 1. the products shall be delivered in one of the heat-treatment conditions given in Table 1.1 Hardenability Mechanical properties 7. 6.3. Where the steel is ordered by using the symbols for normal (+H) or restricted (+HL. columns 8 and 9).1.EN 10083-3:2006 (E) 6.g. lines 3 to 7. not all steel grades can be delivered in the hot worked untreated condition (e.4 w.1.1 General 7. The chemical composition determined by cast analysis shall comply with the values in Table 3.2 Permissible deviations between the limiting values for cast analysis and the values for product analysis are given in Table 4. 7 Requirements Normen-Download-Beuth-Presswerk Krefeld-KdNr. Except where the steels are ordered in the quenched and tempered condition.3. bz 7.1 Untreated condition Unless otherwise agreed at the time of enquiry and order.3613261001-2007-05-07 16:10 ww 7. the hardenability values given in Table 5 or Table 6 shall apply.e. 6.4 Cast separation The products shall be delivered separated by cast. 6.2. 1 All steels shall have a fine grain structure with an austenite grain size of 5 or finer. footnote f to Table 7).1. shall not be regarded as defects. requirements relating to the internal soundness of products shall be agreed at the time of enquiry and order. footnote c.1 Under suitable conditions (avoiding local stress peaks.3. 7.3 Under suitable conditions steel grades 20MnB5. Ca treatment).3 Shearability of semi-finished products and bars 7.6963824-LfNr. 7. if possible with reference to European standards. see also fx w.6. Annex E).3 and EN 10083-1:2006. Where appropriate. c om In this case the hardenability values given in Table 5 are for guidance purposes only.3.2.3.EN 10083-3:2006 (E) Where the steel is ordered without hardenability requirements. the requirements for mechanical properties specified in Table 8 for the quenched and tempered condition apply. 30MnB5.3613261001-2007-05-07 16:10 7. such as scores originating from rolled-in scale in the case of hot-rolled products. All products shall have a smooth finish appropriate to the manufacturing processes applied. 8 w.) all steels are shearable in the soft-annealed (+A) condition (see. if they are supplied in the "treated to improve shearability (+S)" condition with the hardness requirements as specified in Table 7. 7. Where improved machinability is required.g.1 6.4. however.4).5 Surface hardness For the hardness of surface hardened zones of steels intended for flame and induction hardening the specifications in Table 9 apply. For verification see A.4. when tested in accordance with EN ISO 643. 7.3. see also Table 3. 7. application of blades with a profile adapted to that of the product. 7. bz 7. Normen-Download-Beuth-Presswerk Krefeld-KdNr.2 Steel grades without boron up to steel grade 42CrMoS4 and the boron-alloy steel grades 33MnCrB52 and 39MnCrB6-2 (see Table 7) and the corresponding grades with requirements on hardenability (see Tables 5 and 6) are shearable under suitable conditions.5 Internal soundness ww 7. . 7.6 Surface quality 7. the grades with a specified sulphur range should be ordered and/or with a specific treatment to improve machinability (e.2 The steels shall have a degree of cleanness corresponding to the special steel quality (see A.6. etc. Figure 1 or Figures 2 and 3 (see also footnote a in Table 1).3. The mechanical property values given in Table 8 apply to test pieces in the quenched and tempered condition which have been taken and prepared in accordance with EN 10083-1:2006.4 Structure 7. 38MnB5 and 27MnCrB5-2 and the corresponding grades with requirements on hardenability (see Table 5) are shearable in the untreated condition. EN 10160 specifies requirements of ultrasonic testing of flat products of thickness equal to or greater than 6 mm and EN 10308 specifies requirements of ultrasonic testing of steel bars (see A.2 Machinability All steels delivered in the soft annealed (+A) condition are machinable.2 Minor surface imperfections which may occur also under normal manufacturing conditions. pre-heating. 7 Dimensions.2 w. If surface discontinuities are repaired. 7.1. inspection of surface quality and dimensions shall be carried out by the manufacturer.4 Requirements relating to the permissible depth of decarburization may be agreed at the time of enquiry and order.1.1 Testing procedures and types of documents 8.1.2.2.3613261001-2007-05-07 16:10 ww 8.3 Where appropriate. see EN 10083-1:2006.1. see EN 10083-1:2006 8. Bars and rods are delivered with surface class A according to EN 10221 unless otherwise agreed at the time of enquiry and order. requirements relating to the surface quality of the products shall be agreed upon at the time of enquiry and order.3 8 Inspection 8. bz 8.EN 10083-3:2006 (E) 7. if possible with reference to European Standards. Normen-Download-Beuth-Presswerk Krefeld-KdNr.2 Frequency of testing Sampling Sampling shall be in accordance with Table 10. if possible. Annex D). with reference to the dimensional standards applicable (see EN 10083-1:2006. For the information to be included in a test report.5 If suitability of bars and rods for bright drawing is required.1 Products complying with this document shall be ordered and delivered with one of the inspection documents as specified in EN 10204.4 Unless otherwise agreed at the time of the order. Test units The test units and the extent of testing shall be in accordance with Table 10. 8.1.2. 8. this shall be agreed at the time of enquiry and order. fx w. The type of document shall be agreed upon at the time of enquiry and order. . 8.2 8. 7. subclass 1 according to EN 10163-2 unless otherwise agreed at the time of enquiry and order. the method and maximum depth of removal shall be agreed at the time of enquiry and order. 7.6. a test report shall be issued. tolerances on dimensions and shape for the product shall be agreed at the time of enquiry and order. For the information to be included in an inspection certificate.6963824-LfNr. tolerances on dimensions and shape The nominal dimensions. If the order does not contain any specification of this type. c om 9 Sheet/plate and wide flats are delivered with surface class A. 7.6 The removal of surface defects by welding shall only be permitted with the approval of the customer or his representative.3.6.1 8.1.6.6. The depth of decarburization shall be determined in accordance with the micrographic method specified in EN ISO 3887. 10. c om . 8. 9. Footnote a (mechanical properties of reference test pieces).e.2.2.1 Preparation of samples Preparation of samples shall be in accordance with Table 10 and EN 10083-1:2006. 10.1 Chemical analysis See EN 10083-1:2006. hardness and mechanical properties For steels being ordered without hardenability requirements.1 Verification of hardenability.1 Selection and preparation of samples for chemical analysis The preparation of samples for product analysis shall be in accordance with EN ISO 14284. shall with the following exception be verified.3.2 Mechanical tests See Table 10 and EN 10083-1:2006.2 Location and orientation of samples and test pieces for mechanical tests w. +HH or +HL in the designation (see Tables 5 and 6). 10 Test methods ww 10 10.1. 9.2 Preparation of test pieces fx 9.3. 9.3 Tests to be carried out for specific inspection 8. The requirement given in Table 1.6963824-LfNr. 9. the hardness requirements or mechanical properties given for the relevant heat-treatment condition in Table 1.3613261001-2007-05-07 16:10 See Table 10. is only to be verified if supplementary requirement A. unless otherwise agreed. For steels being ordered with the symbol +H. only hardenability requirements according to Table 5 or 6 shall be verified. subclause 2. 9. w.1.2.3 Location and preparation of samples for hardness and hardenability tests Normen-Download-Beuth-Presswerk Krefeld-KdNr. i. 9 Preparation of samples and test pieces 9.2.1 is ordered.4 Identification of samples and test pieces Samples and test pieces shall be marked so that the original products and their location and orientation in the product is known. without the symbol +H. Column 8. bz 9.2.2 Visual and dimensional inspection A sufficient number of products shall be inspected to ensure compliance with the specification. 10.2. +HH or +HL in the designation.EN 10083-3:2006 (E) 8. Preparation of test pieces shall be in accordance with Table 10 and EN 10083-1:2006. 4 Retests See EN 10083-1:2006. The hardness values shall be determined in accordance with EN ISO 6508-1.3 Hardness and hardenability tests 10. 10. om . the hardness shall be measured in accordance with EN ISO 6506-1.6963824-LfNr. 10.3. scale C.3.6). labelling. If agreed at the time of enquiry and order the manufacturer shall give sufficient information about the calculation for the customer to confirm the result. The temperature for quenching shall comply with table 11.4. the steel grade and the origin of the delivery (see A.3 Surface hardness The surface hardness of steels after flame or induction hardening (see Table 9) shall be determined in accordance with EN ISO 6508-1. The calculation method is left to the discretion of the manufacturer. bz 11 fx w. Normen-Download-Beuth-Presswerk Krefeld-KdNr.3613261001-2007-05-07 16:10 ww w. 10. 10. scale C.2 Verification of hardenability As far as available the manufacturer has the option to verify the hardenability by calculation.3.1 Hardness in treatment conditions +A and +S For products in treatment conditions +A (soft annealed) and +S (treated to improve shearability).EN 10083-3:2006 (E) 10. 11 Marking. c If a calculation formula is not available or in the case of dispute an end quench hardenability test shall be carried out in accordance with EN ISO 642. packaging The manufacturer shall mark the products or the bundles or boxes in a suitable way so that it is possible to determine the cast. product forms and requirements as specified in Tables 3 to 8 1 1 Heat treatment condition at delivery 2 Symbol Semifinished products none or +U +S x x 3 4 5 6 7 8 9 Bars Rod Flat products x x xw .EN 10083-3:2006 (E) Table 1 — Combinations of usual heat-treatment conditions at delivery. e.3613261001-2007-05-07 16:10 Quenched and tempered Others +QT - x x xb x Mechanical properties according to Not Applicable 6 a Other treatment conditions.1 a x indicates applicable for Applicable requirements if the steel is ordered with the designation given in Table 5 or 6 9. The treatment condition annealed for spheroidal carbide (+AC) as required for cold upsetting and cold extrusion is covered by EN 10263-4. see A.1 8. the mechanical properties specified in Table 8 shall be achievable for the ruling end cross-section after appropriate heat treatment (for verification on reference test pieces.3 2 3 Untreated Treated to improve shearability Soft annealed x x x - o Table 7 column +Sa Table 7 column +Aa As in columns 8.6963824-LfNr.g.2 9.b zf For deliveries in the untreated condition and in the "treated to improve shearability" and "soft annealed" condition. b It is not possible to deliver all dimensions of flat products in this heat-treatment condition.c Hammer and drop forgings x Table 3 8. 12 ww .2 9.1 and 8.2 (see footnote b in Table 3) Table 8 4 +A x x x x b x Chemical composition according to Tables 3 and 4 Maximum hardness Hardenability values according to Table 5 or 6 5 Normen-Download-Beuth-Presswerk Krefeld-KdNr. certain annealing conditions to achieve a certain structure may be agreed at the time of enquiry and order.1). . 6963824-LfNr.3613261001-2007-05-07 16:10 ww w. c x x x x x x x x x x x x x - 3 4 5 6 +PI +BC +RM 7 a - Normen-Download-Beuth-Presswerk Krefeld-KdNr. limed or phosphated. om Hammer and drop forgings (see note 2 in EN 100831:2006. where appropriate. it may be agreed that the products be oiled or. bz 13 fx In addition. Clause 1) x x a a - - .EN 10083-3:2006 (E) Table 2 — Surface condition at delivery 1 1 2 3 Symbol Semifinished products (such as blooms. billets) 2 Unless otherwise agreed Hot worked None or +HW Unformed continuously cast Particular conditions supplied by agreement Hot worked and pickled Hot worked and blast cleaned Hot worked and rough machined Others +CC x x 4 5 6 7 8 9 Notes Surface condition at delivery x indicates in general applicable for Bars Rod Flat products x x w. 20 0.035 max.025 max.30 0.0008 to 0.30 to 0.50 1.020 to 0.025 xw .035 max.54 0. mechanical properties and applicability.025 0.035 max. 0.025 0.90 to 1.025 0.20 Steels with boron max.30 1.0050 0.36 to 0. phosphorus and sulfur. the deviations shall not exceed the specifications of Table 4.20 1.0050 38Cr2 46Cr2 34Cr4 34CrS4 37Cr4 37CrS4 41Cr4 41CrS4 25CrMo4 25CrMoS4 34CrMo4 34CrMoS4 42CrMo4 42CrMoS4 50CrMo4 34CrNiMo6 30CrNiMo8 35NiCr6 36NiCrMo16 39NiCrMo3 30NiCrMo16-6 51CrV4 20MnB5 30MnB5 38MnB5 27MnCrB5-2 33MnCrB5-2 39MnCrB6-2 a 1.025 0. Ca-treatment)) may be supplied on request.020 to 0.60 to 0.7037 1.50 to 0.50 to 0.37 0.7033 1.5532 1.30 0.40 0.7038 1.90 to 1.035 max. 0.035 0.50 0.70 .0008 to 0.80 0. Where requirements are made on hardenability (see Tables 5 and 6) or on the mechanical properties in the quenched and tempered condition (see Table 8).7006 1. 0.80 0.035 0.15 to 0.50 to 0.0008 to 0.35 to 0.80 0.60 0.035 0.6773 1. 0. In this case the upper limit for the manganese content may be increased by 0.20 0.7039 1.7227 1.60 0.00 3. 0.30 to 1.35 to 0.40 0.7218 1.025 max. 0.6582 1.23 0. 0.035 0.035 max.38 to 0.15 to 0. other than for the purpose of finishing the heat and for boron to have its effect on the hardenability.025 0.20 0. 0.30 to 0.3 to 4.40 0.90 0.020 to 0.40 0.025 0.45 P max.1 0.c Steels without boron c max. 0.035 max.040 0.50 0.60 to 0. b c 14 ww .40 0.42 Si max.6963824-LfNr.42 to 0.50 to 0.025 0.24 to 0.40 0.40 1.10 to 0.7189 0.45 1.40 0.0008 to 0.025 0.36 to 0.035 max.020 to 0.26 to 0.025 0.80 0.90 to 1.20 1.20 0.035 0.7034 1.15 to 0.60 0.035 max.035 max.40 0.0050 0.29 0.040 max.7228 1. 0.34 0.025 max. 0.90 to 1.40 to 1.00 1.025 0.60 to 1.5531 1.020 to 0. 0.80 0.40 0.5530 1.15 to 1.42 0.3613261001-2007-05-07 16:10 zf max.47 to 0.70 1.0050 0.27 to 0.7225 1.6580 1.50 0.30 to 0.025 Normen-Download-Beuth-Presswerk Krefeld-KdNr.40 0.30 0.26 to 0.025 0.40 to 0.80 to 2. 0.6747 1.10 to 1.7003 1.035 0.20 0.25 - Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser. 0.025 0.90 0.90 0.040 max.20 to 1.40 0.33 0.80 to 2.37 0.040 max. 0.5815 1.45 0.30 to 1.60 to 0.50 to 0.10 1.50 to 0.30 to 0.22 to 0.10 0.15 to 0.20 0.90 to 1.40 0.0050 0.60 to 0.7185 1.70 to 1.EN 10083-3:2006 (E) Table 3 — Steel grades and chemical composition (cast analysis) Steel designation Name Number C 0.33 0. 0.38 to 0.020 to 0.025 0.15 to 0.7213 1.40 0.035 0.30 to 0.30 to 0.40 0.b Cr Mo - o Ni 1.30 0.90 to 1.0050 0.15 to 1.0008 to 0.3 - V - B 0.0008 to 0.40 0.39 0.7182 1.50 to 0.7226 1.90 to 1.40 0.38 0. slight deviations from the limits for the cast analysis are permissible.035 max.90 to 1.90 0.15 to 0.40 0.025 0.90 0. 0.6 to 4.42 0. 0.15 %.025 0.32 to 0.7035 1.36 0.25 to 0.50 to 0. Steels with improved machinability as a result of the addition of higher sulphur contents up to around 0.43 0.80 to 1.40 Mn 0.80 0.025 0.40 to 0.37 0.30 to 0. except for the elements carbon.60 to 2.035 0.60 1. 0.70 0.b 1.6510 1.60 0.40 0.41 0.20 to 1.10% S (including resulphurized steels with controlled inclusion content (e.70 to 1. 0.g.40 0.8159 1.17 to 0.60 to 0.040 max.80 0.025 0.040 0.60 max.20 0.30 to 0.40 0. 0.60 to 0.45 0.00 max. 0.30 to 0.10 to 1.025 0.25 0. S Chemical composition % by massa.80 0.46 to 0.20 to 1. 0.55 0.45 0.60 to 0.7220 1.30 to 0.025 0. All reasonable precautions shall be taken to prevent the addition of such elements from scrap or other material used in the manufacture which affect the hardenability.30 0.025 0.90 0.025 0.40 0.34 to 0.60 3.40 1.90 0. 0003 om Permissible deviation a % by mass 15 .03 ± 0.03 ± 0.70 ≤ 0. bz w.6963824-LfNr.EN 10083-3:2006 (E) Table 4 — Permissible deviations between the product analysis and the limiting values given in Table 3 for the cast analysis Element Permissible maximum content in the cast analysis % by mass C Si Mn > 1.00 V B a ≤ 0.05 fx ≤ 0.05 ± 0.55 ≤ 0. b Normen-Download-Beuth-Presswerk Krefeld-KdNr.040% according to cast analysis.0050 ± means that in one cast.30 ≤ 0.04 ± 0.040 ≤ 2.00 Mo > 0.25 ± 0.07 ± 0.10 ± 0. but not both at the same time.00 ≤ 2.04 ± 0.00 ≤ 1.005 ± 0. the deviation may occur over the upper value or under the lower value of the specified range in Table 3.00 P S Cr > 2.020% to 0.40 ≤ 1.005%.3 ± 0.3613261001-2007-05-07 16:10 ww w.005 ≤ 0.05 ± 0. For steels with a specified sulphur range of 0.30 Ni > 2.60 ≤ 2.02 + 0.025 ≤ 0.20 ≤ 0. c + 0.00 ≤ 4.02 b + 0. the permissible deviation is ± 0. 6582 30CrNiMo8 1. 35NiCr6 1. min. min. min. min. max.7213 1. min. max.6580 ww min.7039 1.7226 1.5 59 51 63 54 57 49 59 51 61 53 52 44 xw . 58 +H max. min.7038 1. min. min.7037 1.6510 +H max.7220 1.c Hardness in HRC 15 20 3 5 7 9 11 13 25 30 Steels without boron 54 49 43 37 29 25 57 39 37 35 32 30 27 46 22 20 61 59 57 53 47 42 39 36 33 32 49 40 32 28 25 23 22 20 57 56 54 52 49 46 44 39 37 35 48 45 41 35 32 29 27 23 21 20 59 58 57 55 52 50 48 42 39 37 50 48 44 39 36 33 31 26 24 22 61 60 59 58 56 54 52 46 42 40 52 50 47 41 37 34 32 29 26 23 52 51 50 48 46 43 41 37 35 33 43 40 37 34 32 29 27 23 21 20 57 57 56 55 54 53 36 59 40 63 51 57 48 55 47 55 44 55 47 57 44 52 34 58 37 62 48 57 48 55 46 55 44 55 47 56 43 48 30 56 34 61 45 57 48 55 46 53 40 55 47 55 39 45 28 53 32 60 41 57 47 54 45 53 40 55 47 52 36 43 27 51 31 58 39 57 47 54 45 50 35 55 47 51 34 49 48 45 42 39 61 61 60 60 59 53 52 51 49 43 65 64 64 63 63 58 57 55 58 50 56 48 57 48 56 48 58 49 54 57 49 55 47 57 48 56 48 58 48 53 57 48 55 47 55 44 56 48 57 46 58 58 50 50 56 56 48 48 58 58 49 56 48 59 50 49 56 49 60 51 Steel designation Symbol Limits of Distance in mm from quenched end o 35 40 33 35 37 31 40 25 47 30 55 37 57 46 54 44 55 47 48 32 34 36 20 38 21 32 41 26 48 30 57 38 57 47 54 44 50 35 55 47 49 33 45 32 34 36 31 40 24 46 29 54 36 57 45 54 43 55 47 46 31 50 31 33 35 31 39 24 45 29 54 36 57 44 54 43 55 47 45 30 Normen-Download-Beuth-Presswerk Krefeld-KdNr. min.7003 +H max. 56 48 +H max.7227 1.7034 1.EN 10083-3:2006 (E) Table 5 — Limiting values for the "C" scale Rockwell hardness for special steel grades with (normal) hardenability requirements (+H grades) range Name 38Cr2 Number 1.7033 1.7225 1. 36NiCrMo16 1.7006 +H max.6773 +H max. max. 46Cr2 1. 58 50 +H max.7228 +H +H +H +H +H +H +H max. 58 49 57 50 60 52 max.5815 16 . 39NiCrMo3 1. 34CrNiMo6 1.b min. min. min.6963824-LfNr.7218 1. min. 34Cr4 34Cr4S 37Cr4 37CrS4 1. 1.3613261001-2007-05-07 16:10 41Cr4 41CrS4 25CrMo4 25CrMoS4 34CrMo4 34CrMoS4 42CrMo4 42CrMoS4 50CrMo4 max.7035 1. max. zf 57 49 61 53 65 . min. min.7189 ww .5532 +H max. min.6963824-LfNr. 38MnB5 1.7182 +H max.5 Distance in mm from quenched end Hardness in HRC 15 20 xw .EN 10083-3:2006 (E) Table 5 – (continued) Steel designation Symbol Limits of range Name Number 1. min. min.8159 +H max.6747 +H max. 20MnB5 1.5531 +H max. 33MnCrB5-2 1.7185 +H max. 55 47 65 57 51CrV4 1. min. min. 27MnCrB5-2 1. 50 42 56 47 60 52 Normen-Download-Beuth-Presswerk Krefeld-KdNr. 59 51 zf 55 47 57 48 17 .c 3 5 7 9 11 13 25 30 Steels without boron (continued) 55 47 55 47 54 46 54 46 54 46 54 46 54 46 53 45 53 45 53 45 65 64 64 63 63 63 62 62 62 61 56 56 55 53 52 50 48 44 41 37 Steels with boron 49 49 49 47 45 43 41 33 27 41 40 37 30 22 55 55 54 53 51 50 47 40 37 33 46 45 44 42 39 36 31 22 60 59 58 57 57 55 53 48 28 47 30 53 36 57 47 41 24 44 24 50 31 57 45 37 20 40 20 47 25 56 40 51 50 49 47 44 41 52 39 55 43 58 50 35 51 36 54 41 58 49 55 55 54 54 53 46 45 44 43 41 57 57 57 57 56 47 47 46 45 44 59 59 51 59 51 58 50 58 50 51 o 35 40 45 50 53 45 60 35 53 45 60 34 53 45 59 33 53 45 58 32 31 54 32 33 37 45 20 55 35 30NiCrMo16-6 1.3613261001-2007-05-07 16:10 30MnB5 1.b +H max.5530 +H max. 39MnCrB6-2 1. min. min.EN 10083-3:2006 (E) Table 6 — Limiting values for the C scale Rockwell hardness for special steel grades with restricted hardenability scatter bands (+HH and +HL grades) range Name 38Cr2 Number 1. min. min. min. min.7006 +HH +HL 34Cr4 34Cr4S 37Cr4 37CrS4 41Cr4 41CrS4 25CrMo4 25CrMoS4 34CrMo4 34CrMoS4 42CrMo4 1.7038 1. max. min.7218 1. max. max. ww +HH +HL max. max.7033 1.7213 1. 49 +HH +HL max. 54 61 zf 61 56 53 58 52 . min.b 47 44 max. 1. max.7003 +HH +HL 46Cr2 1.7037 1.7220 1.c HRC Hardness 15 20 35 32 3 5 7 9 11 13 25 30 57 54 49 43 39 37 30 27 50 46 43 37 36 29 31 25 28 22 26 20 24 21 53 48 42 37 33 31 29 26 24 21 61 59 57 53 47 42 39 36 33 32 53 46 40 36 32 29 28 25 22 21 57 53 49 45 40 36 33 31 28 27 49 40 32 28 25 23 22 20 57 54 59 56 52 58 54 50 57 52 46 35 55 49 43 32 52 46 40 29 50 44 38 27 48 39 28 34 42 37 32 39 35 30 37 51 49 45 41 38 35 33 26 25 48 45 41 23 21 20 53 51 48 44 41 39 37 31 29 27 56 55 53 50 47 44 42 37 34 32 50 48 44 39 36 33 54 41 47 34 43 34 38 29 53 42 47 36 59 46 53 40 31 52 39 45 32 41 32 36 27 52 40 46 34 58 44 51 37 26 46 35 40 29 37 28 32 23 48 36 42 30 56 41 49 34 24 42 31 37 26 35 26 30 21 45 34 39 28 53 39 46 32 22 40 29 34 23 33 24 29 20 43 32 38 27 51 38 44 31 61 60 59 58 56 55 53 51 47 43 58 57 55 52 50 52 50 47 41 37 52 51 50 48 46 46 44 47 41 46 37 56 49 52 45 60 54 57 51 39 43 34 55 46 51 42 60 52 56 49 37 41 32 54 44 49 39 59 48 54 43 49 43 40 51 54 48 61 55 58 52 57 57 52 49 56 58 53 54 61 Steel designation Symbol Limits of Distance in mm from quenched end o 35 40 33 23 28 35 24 30 37 26 31 31 22 27 40 30 35 25 47 36 41 30 34 29 36 25 31 24 20 38 27 32 21 32 23 28 41 31 36 26 48 36 42 30 45 32 22 27 34 23 29 36 25 30 31 22 27 40 29 35 24 46 35 40 29 50 31 21 26 33 22 28 35 24 29 31 22 27 39 29 34 24 45 34 40 29 Normen-Download-Beuth-Presswerk Krefeld-KdNr. max. max.3613261001-2007-05-07 16:10 max.7035 1. 42CrMoS4 1. min. min.7039 1.6963824-LfNr. max. min. min. min.7226 1. min.5 59 54 56 51 63 57 60 54 57 52 54 49 59 54 56 51 xw .7227 max. min. min. 57 52 49 56 58 53 max. 18 . min. max.7034 1.7225 +HH +HL +HH +HL +HH +HL +HH +HL max. 8159 ww +HL max. min. min.6747 51CrV4 1.6963824-LfNr. max. 35NiCr6 1. min. min.6580 +HH +HL max.EN 10083-3:2006 (E) Table 6 – (continued) Steel designation Name 50CrMo4 Number 1.c 30 63 63 60 58 60 58 53 50 51 48 59 57 53 50 51 48 58 55 53 50 51 48 57 54 52 49 50 47 56 53 51 48 50 47 55 51 51 48 50 47 53 48 51 48 49 46 50 45 51 48 49 46 47 41 50 47 48 45 45 39 50 47 48 45 63 62 61 60 60 59 57 56 54 52 58 58 58 57 57 57 57 57 57 57 55 55 55 54 54 54 54 54 54 54 56 56 56 55 55 55 55 55 54 54 53 53 53 52 52 52 52 52 51 51 58 58 57 57 55 55 55 53 53 50 53 49 53 49 52 48 52 48 50 44 50 44 50 44 48 40 48 40 45 35 54 54 53 53 49 49 49 45 45 40 56 56 56 56 56 55 50 52 47 57 48 53 44 54 49 51 46 63 54 59 50 55 50 52 47 56 47 52 43 54 49 51 46 62 53 57 48 55 50 52 47 55 44 50 39 53 48 50 45 62 50 56 44 55 50 52 47 52 41 47 36 53 48 50 45 62 48 55 41 55 50 52 47 51 40 45 34 53 48 50 45 61 45 53 37 51 49 54 51 50 47 59 62 56 51 48 53 50 55 50 52 47 64 59 61 56 51 48 52 49 54 49 51 46 64 58 61 55 51 48 51 48 54 49 51 46 63 56 60 53 51 48 50 46 54 49 51 46 63 56 59 52 54 53 53 53 53 60 59 58 58 57 57 56 55 55 53 55 52 65 o 35 57 51 44 38 57 54 50 47 54 51 47 44 40 55 43 49 37 57 50 53 46 54 47 51 44 55 50 52 47 48 37 43 32 53 48 50 45 60 43 51 34 45 54 42 48 36 57 49 53 45 54 47 50 43 55 50 52 47 46 36 41 31 53 48 50 45 59 42 50 33 50 54 42 48 36 57 48 53 44 54 47 50 43 55 50 52 47 45 35 40 30 53 48 50 45 58 41 49 32 50 45 40 35 50 52 47 49 38 44 33 53 48 50 45 60 43 52 35 55 Normen-Download-Beuth-Presswerk Krefeld-KdNr. max. 52 +HH max.6582 +HH +HL 30CrNiMo8 1. min. min.7228 +HH +HL 34CrNiMo6 1. max.6773 +HH +HL 39NiCrMo3 1. min. min. 65 zf 52 50 55 55 60 19 . min. Symbol Limits of range 1.3613261001-2007-05-07 16:10 max. min. min.6510 +HH +HL max. 55 max. min.5815 +HH +HL 36NiCrMo16 1. min. max. max. min. max. 30NiCrMo16-6 1.5 65 60 63 58 58 53 55 50 56 51 53 48 58 53 54 49 57 3 5 7 9 65 64 64 63 Distance in mm from quenched end HRC Hardness 15 20 62 61 11 13 25 xw . min. max. min.b max. 57 52 50 47 60 62 57 +HH +HL max. max. . see.EN 10083-3:2006 (E) Table 7 — Maximum hardness for products to be supplied in the "treated to improve shearability (+S)" or "soft annealed (+A)" condition Steel designationa Name 38Cr2 46Cr2 34Cr4. Condition +A is not applicable for boron steels.6582 1. 34CrMoS4 42CrMo4. however. 1.7039 1.7182 1.7003 1.5530 1. 37CrS4 41Cr4. +HHand +HL-grades) covered in Tables 5 and 6.7218.7006 1. 1. and on the dimensions. Depending on the chemical composition of the cast.5531 1.7034.7189 -e -e -e 255 255 w.5532 1. 1. c 223 241 248 248 248 223 269 240 270 248 -f -f -f -f -f -f om +A 207 223 223 235 241 212 . particularly in the case of the +HH-grades.7037 1. The values are not applicable to slabs which have been continuously cast and not further deformed.7185 1. HBW in conditionb Number 1.8159 1.6747 +S 255 255 255 255 255 c 255 255 255 d d d d d d d d e c c fx 1.7220. soft annealing may be necessary.7033.6510 1. 34CrS4 37Cr4. 25CrMoS4 34CrMo4.6580 1. 1.3613261001-2007-05-07 16:10 The values apply also for the steel with hardenability requirements (+H-.7038 1. 42CrMoS4 50CrMo4 34CrNiMo6 30CrNiMo8 35NiCr6 36NiCrMo16 39NiCrMo3 30NiCrMo16-6 51CrV4 20MnB5 30MnB5 38MnB5 27MnCrB5-2 33MnCrB5-2 39MnCrB6-2 a Max. 1.7228 1.7226 1. footnote c.6773 1. Shearable in the untreated condition.6963824-LfNr.5815 1.7225. bz b c d e f Normen-Download-Beuth-Presswerk Krefeld-KdNr. Where the shearability is of importance.7227 1. this steel should be ordered in the "soft-annealed" condition. ww 20 w. 1.7035.7213 1. 41CrS4 25CrMo4. 7035 1. J 45 45 35 30 45 45 160 mm < d ≤ 250 mm 100 mm < t ≤ 160 mm Re min. % Z min. Annex A) with a diameter (d) or for flat products thickness (t) of xw . J 45 35 30 45 45 min. min.7037 1.c Z KV b J Re Rm c 16 mm < d ≤ 40 mm 8 mm < t ≤ 20 mm Rm A min. J min. % 16 15 13 13 12 11 Z min. % 15 14 14 13 12 14 12 11 10 40 mm < d ≤ 100 mm 20 mm < t ≤ 60 mm A Z min.7034 1. 38Cr2 46Cr2 34Cr4 34CrS4 37Cr4 37CrS4 41Cr4 41CrS4 25CrMo4 25CrMoS4 34CrMo4 34CrMoS4 42CrMo4 42CrMoS4 50CrMo4 34CrNiMo6 30CrNiMo8 1.7003 1. J Re min. MPa 450 700 to 850 550 800 to 950 590 800 to 950 630 850 to 1000 660 900 to 1100 600 800 to 950 650 900 to 1100 750 1000 to 1200 780 1000 to 1200 900 1100 to 1300 1050 1250 to 1450 740 880 to 1080 1250 to 1450 c a Mechanical properties for the ruling section (see EN 10083-1:2006. - % 40 40 350 400 40 40 35 55 50 45 40 35 35 50 40 35 460 510 560 450 550 650 Normen-Download-Beuth-Presswerk Krefeld-KdNr.5815 12 40 - 15 10 40 45 35 35 800 650 to 800 750 to 900 800 to 950 850 to 1000 900 to 1100 1000 to 1200 1000 to 1200 830 to 980 900 to 1050 850 to 1000 - 11 50 45 800 11 50 45 - 1050 40 30 900 39NiCrMo3 30NiCrMo16-6 51CrV4 20MnB5 30MnB5 1.7226 1.7033 1. % 14 12 12 11 11 12 11 10 9 9 9 Z min. MPa 450 500 550 600 700 c Rm A min.7006 1. o KV b Re Rm c 100 mm < d ≤ 160 mm 60 mm < t ≤ 100 mm A min.6580 MPac 550 800 to 950 650 900 to 1100 700 900 to 1100 750 950 to 1150 800 1000 to 1200 700 900 to 1100 800 1000 to 1200 900 1100 to 1300 900 1100 to 1300 1000 1200 to 1400 1050 1250 to 1450 740 1050 880 to 1080 1250 to 1450 980 to 1180 1080 to 1230 1100 to 1300 900 to 1050 950 to 1150 Rm A min.6510 1.5531 785 880 900 11 10 9 40 45 - 735 - 880 ww 40 - 800 700 800 14 13 55 50 - 600 650 930 to 1130 1080 to 1230 1000 to 1200 750 to 900 800 to 950 11 10 10 15 13 40 35 35 30 60 60 685 880 700 - 45 45 55 50 880 to 1080 1080 to 1230 900 to 1100 - 12 10 12 - 45 45 50 - 40 35 30 - 635 790 650 - 12 11 13 - 50 50 50 - 40 35 30 - 540 880 600 - 13 11 13 - 50 50 50 - 40 35 30 - 21 .7039 1.8159 1.6582 1. % 15 14 13 13 12 60 55 50 55 50 KV b min.6963824-LfNr.7227 1.7228 1.3613261001-2007-05-07 16:10 zf 45 30 700 10 9 45 45 800 40 30 900 14 9 40 35 640 780 to 980 1100 to 1300 MPa 600 to 750 650 to 800 700 to 850 750 to 900 800 to 950 700 to 850 800 to 950 900 to 1100 900 to 1100 1000 to 1200 1000 to 1300 % 17 15 % 45 45 MPa 35 35 - 700 to 850 750 to 900 800 to 950 800 to 950 900 to 1100 1000 to 1200 740 to 880 900 to 1050 800 to 950 - 15 14 14 45 40 40 40 35 35 - - 15 14 12 60 55 50 50 45 35 400 500 550 12 11 10 50 50 45 30 45 35 650 700 800 35NiCr6 36NiCrMo16 1. % 35 35 35 35 30 50 45 40 40 40 40 KV b min.6773 9 40 . % 60 55 50 50 55 50 KV b min.7218 1.7038 1. min.6747 1.5530 1.7213 1.EN 10083-3:2006 (E) Table 8 — Mechanical properties at room temperature in the quenched and tempered condition (+QT) Steel designation d ≤ 16 mm t ≤ 8 mm Name Number Re min.7220 1.b 1. min. 35 35 min.7225 1. 65 Normen-Download-Beuth-Presswerk Krefeld-KdNr. 38MnB5 27MnCrB5-2 33MnCrB5-2 39MnCrB6-2 a Mechanical properties for the ruling section (see EN 10083-1:2006. J - min. J - xw . - o KV b Re Rm c 100 mm < d ≤ 160 mm 60 mm < t ≤ 100 mm A min. Annex A) with a diameter (d) or for flat products thickness (t) of Rm MPac 1050 to 1250 1000 to 1250 1050 to 1300 1100 to 1350 A min. 1 MPa = 1 N/mm2. 0. min.2 % proof strength Rp0. see Table 10. b c d For sampling see EN 10083-1:2006 fig. For 40 mm < d ≤ 60 mm and 20 mm < t ≤ 40 mm. J - 160 mm < d ≤ 250 mm 100 mm < t ≤ 160 mm Re min. % 12 14 13 12 Rm A min.7185 1.3.b zf Z: Reduction in cross section on fracture.) .5532 1. % 12 14 13 12 Z min.EN 10083-3:2006 (E) Table 8 – (continued) Steel designation d ≤ 16 mm t ≤ 8 mm Name Name Re min. % 50 55 50 50 KV b min.7189 900 800 850 900 % 50 MPa % MPa - - - 55 50 50 60 50 40 700 750 800 d d d 800 to 1000d 900 to d 1100 1000 to 1200d 15 13 d 55 50 d 65 50 d - - d d d 12 d 50 d 40 d - - Re: Upper yield strength or. if no yield phenomenon occurs. - min. % Z min. column 7a.3613261001-2007-05-07 16:10 S 0 .6963824-LfNr.7182 1. A: Percentage elongation after fracture (initial gauge length Lo = 5. KV: Impact strength of longitudinal Charpy-V-notch test pieces (average of 3 individual values shall meet the minimum specified in the table. % Z min. % - min. no individual value shall be lower than 70 % of the minimum shown in the table. % - KV b min. 60 min.2. - 1. % KV b min. line T4). MPa c Rm A min. 700 750 800 850 MPa 850 to 1050 900 to 1150 950 to 1200 1050 to 1250 c 40 mm < d ≤ 100 mm 20 mm < t ≤ 60 mm A Z min.c Z KV b J Re Rm c 16 mm < d ≤ 40 mm 8 mm < t ≤ 20 mm Re min.1 and fig. Rm: Tensile strength. 22 ww . J - min. 7006 1.7035/1.6963824-LfNr.7228 The above values apply for the condition existing after quenching and tempering and surface hardening according to the conditions given in Table 11 followed by stress relieving at 150°C to 180°C for about 1h.7227 1. c 58 om 54 51 53 53 .3613261001-2007-05-07 16:10 ww w.7034/1.7225/1. and they relate to cross-sections up to 100 mm diameter for the steels 46Cr2. It should be noted that surface decarburization may lead to lower hardness values in the surface hardened zones. Normen-Download-Beuth-Presswerk Krefeld-KdNr. bz 23 fx w.7039 1. Name 46Cr2 37Cr4/37CrS4 41Cr4/41CrS4 42CrMo4/42CrMo4 50CrMo4 a Number 1. 37Cr4/37CrS4 and 41Cr4/41CrS4.7038 1. and up to 250 mm diameter for the steels 42CrMo4/42CrMoS4 and 50CrMo4.EN 10083-3:2006 (E) Table 9 — Surface hardness of steels after flame or induction hardening Steel designation Surface hardness HRC min. the sampling method which starts from separately cast and subsequently hot worked test ingots or from cast and not hot worked samples is. left to the discretion of the manufacturer. zf  the bar shall be reduced by forging diameters > 40 ≤ 150 mm. scale C. The hardness values shall be determined in accordance with EN ISO 6508-1.5 in annex A) 1 1 T2 2 5 and 6 C Normen-Download-Beuth-Presswerk Krefeld-KdNr. machining in the case of diameters ≤ 40 mm. The temperature for quenching shall comply with Table 11.EN 10083-3:2006 (E) Table 10 — Test conditions for the verification of the requirements given in column 2 1 No. a diameter of 40 mm in the case of  in the case of diameters > 150 mm the test piece shall be taken such that.3613261001-2007-05-07 16:10  the test piece shall be produced by In accordance with EN ISO 642. T2 End quench hardenability test.c Test method to be applied Line Sampling and sample preparation T1 General conditions The general conditions for selection and preparation of test samples and test pieces for steel shall be in accordance with EN ISO 377 and EN ISO 14284.6963824-LfNr.b 24 In all other cases. its axis lies 20 mm below the surface. columns 6 and 7) 7a Test method to be applied (see in the supplement to this table. In the case of dispute if possible the sampling method given below shall be used: Extent of testing o 6a to (Supplement to Table 10. unless otherwise agreed at the time of enquiry and order. line T1 and line …) (The cast analysis is given by the manufacturer. for product analysis see clause A. . 2 Requirements 3 Test unita 4 5 6 7 See Table 1 Chemical composition Hardenability 3+4 C Number of products per test unit Number of tests per product Sampling and sample preparation xw . ww . columns 6 and 7) 7a Test method to be applied (see in the supplement to this table. line T1 and line . in the case of hammer or drop forgings. e. free from oxide scale and foreign matter.c Test method to be applied Line Sampling and sample preparation T3 T3 Hardness tests T3a T3a  the bar in the case of round bars.. T3b T3b Extent of testing o 6a at a distance of 1x diameter from one end of at a distance of 1 x thickness from one end and 0.g. 2 Requirements 3 Test unita 4 5 6 7 See Table 3 Hardness Number of products per test unit Number of tests per product Sampling and sample preparation xw .25 x thickness from one longitudinal edge of the product in the case of bars with square or rectangular cross-section and also (Supplement to Table 10.  in the case of flat products. In accordance with EN ISO 6508-1. where possible. The test shall be carried out on a surface which is smooth and even.EN 10083-3:2006 (E) Table 10 – (continued) 1 No. the hardness shall. Preparation shall be carried out in such a way that any alteration of the surface hardness is minimized. the most appropriate position for the hardness indentations shall be agreed at the time of ordering. Specimen preparation shall be in accordance with EN ISO 6506-1. be determined at the following point on the surface: Normen-Download-Beuth-Presswerk Krefeld-KdNr.6963824-LfNr. ww 25 .. clause 6).b 1 1 zf 3b Surface hardness 9 C If it should be impossible to comply with the above.3613261001-2007-05-07 16:10 . This shall be taken into account particularly in the case of low-depth indentations (in accordance with EN ISO 6508-1:2005. 3a in the condition +S or +A 7 C +D +T 1 1 In cases of dispute.) In accordance with EN ISO 6506-1. Products of different thicknesses may be grouped if the thicknesses lie in the same dimension range for mechanical properties and if the differences do not affect the properties. The tensile test pieces shall be prepared in accordance with EN 10002-1. line T1 and line .) In cases of dispute the tensile test shall be carried out on proportional test pieces having a gauge length of Normen-Download-Beuth-Presswerk Krefeld-KdNr.e. Where this is not possible – i.. column 8 or 9. Extent of testing o 6a (Supplement to Table 10.. obtained for these test pieces shall also be agreed. and where applicable. specified in EN 10002-1 shall be agreed at the time of enquiry and order. for  for bars and rod in accordancewith EN flat products with thickness of < 3 mm – a test piece with constant gauge length as 10083-1:2006. but at least one test piece shall be taken per cast. columns 6 and 7) 7a Test method to be applied (see in the supplement to this table.the test .  in the case of hammer and drop forgings The impact test shall be carried out on (see note 2 in Charpy V-notch test pieces in accordance with EN 10045-1. Clause 1). Figures 2 and 3. In this case  for flat products in accordance with EN the minimum elongation value to be 10083-1:2006. a b The tests shall be carried out separately for each cast indicated by "C" – for each dimension as indicated by "D" – and for each heat treatment batch as indicated by "T". one test piece shall be taken for each 25 t or part thereof. 2 Requirements 3 Test unita 4 5 6 7 See Table 4 Mechanical properties of Number of products per test unit Number of tests per product Sampling and sample preparation xw .b zf L0 = 5.6963824-LfNr.EN 10083-3:2006 (E) Table 10 – (continued) 1 No.3613261001-2007-05-07 16:10 quenched and tempered products 8 C +D +T 1 1 tensile and 3 Charpy-Vnotch impact tests NOTE Verification of the requirements is only necessary if an inspection certificate is ordered and if the requirement is applicable according to Table 1.c Test method to be applied Line Sampling and sample preparation T4 Tensile test and impact tests T4a T4a pieces shall be taken froma position agreed ordering at in the such axis a lies time way in of that the theirlongitudinal direction of principal grain flow.65 S 0 The test pieces for tensile test. If the product is continuously heat treated. the Charpy-V-notch impact tests (where S0 is the original cross-sectional shall be taken as follows: area). Figure 1. 26 ww . EN 10083-1:2006. the impact test pieces in accordance with EN 10045-1. the temperatures specified for the end quench test are mandatory.5532 27MnCrB5-2 33MnCrB5-2 39MnCrB6-2 a Normen-Download-Beuth-Presswerk Krefeld-KdNr.7218 1.6963824-LfNr.6773 1. d e When choosing the quenching agent the influence of other parameters.7227 1.6582 1.5530 1. f Tempering period: at least 60 min (guide value). oil or water Oil or water Oil Oil Water Water Water or oil Water or oil Oil Oil 830 to 850 840 to 860 820 to 870 880 to 920 860 to 900 840 to 880 880 to 920 860 to 900 840 to 880 w.7037 1. This table also applies for the various grades with specified hardenability (+H-.6580 1.5531 1.8159 20MnB5 30MnB5 38MnB5 1.7182 1. w. Austenitizing period: at least 30 min (guide value). +HH. dimensions and quenching temperature on properties and crack susceptibility should be taken into account.7035 1.7189 The conditions given in this table are for guidance.7038 1.7226 1. bz 1.d °C 830 to 870 820 to 860 830 to 870 Quenchinge agent Oil or water Oil or water Water or oil a Temperingf °C End quench test °C 840 to 900 830 to 890 820 to 880 820 to 870 830 to 860 830 to 860 fx Oil or water 840 to 860 Oil or water 865 to 885 Air.7225 1.7003 1.6747 820 to 860 Oil or water 825 to 865 Oil or water Quenching c. such as shape.EN 10083-3:2006 (E) Table 11 — Heat treatment Steel designationb Name 38Cr2 46Cr2 34Cr4 34CrS4 37Cr4 37CrS4 41Cr4 41CrS4 25CrMo4 25CrMoS4 34CrMo4 34CrMoS4 42CrMo4 42CrMoS4 50CrMo4 34CrNiMo6 30CrNiMo8 35NiCr6 36NiCrMo16 39NiCrMo3 30NiCrMo16-6 51CrV4 Number 1.and +HL grades) covered in Tables 5 and 6.7033 1.7039 1.7034 1. c Water or oil 540 to 680 Oil or water 540 to 680 Oil or water 540 to 680 Oil 540 to 680 Oil or water 540 to 660 540 to 660 530 to 630 550 to 650 550 to 650 540 to 630 540 to 680 400 to 600 400 to 600 400 to 600 400 to 600 400 to 600 400 to 600 om 540 to 680 540 to 680 850 ± 5 850 ± 5 850 ± 5 540 to 680 540 to 680 850 ± 5 540 to 680 850 ± 5 850 ± 5 850 ± 5 850 ± 5 850 ± 5 850 ± 5 850 ± 5 850 ± 5 850 ± 5 850 ± 5 850 ± 5 850 ± 5 900 ± 5 880 ± 5 850 ± 5 900 ± 5 880 ± 5 850 ± 5 27 . b ww c The temperatures at the lower end of the range are generally applicable to hardening in water and those at the upper end for hardening in oil.7185 1.6510 1.7228 1. However.7213 1.7220 1.7006 1.3613261001-2007-05-07 16:10 1. Other quenching agents such as synthetic quenchants may also be used.5815 1. c om .EN 10083-3:2006 (E) Key X Y 1 2 3 Distance from quenched end of test piece. HRC HH-grade HL-grade H-grade Normen-Download-Beuth-Presswerk Krefeld-KdNr.C hardness in the end quench hardenability test fx w. mm Hardness.3613261001-2007-05-07 16:10 ww 28 w. bz Figure 1a — Scatter bands for the Rockwell .6963824-LfNr. c om .6963824-LfNr.C hardness in the end quench hardenability test fx 29 w. mm Hardness.EN 10083-3:2006 (E) Key X Y 1 2 3 Normen-Download-Beuth-Presswerk Krefeld-KdNr. HRC HH-grade HL-grade H-grade Figure 1b — Scatter bands for the Rockwell .3613261001-2007-05-07 16:10 ww w. bz Distance from quenched end of test piece. C hardness in the end quench hardenability test fx w.6963824-LfNr. bz Figure 1c — Scatter bands for the Rockwell . mm Hardness. c om . HRC HH-grade HL-grade H-grade Normen-Download-Beuth-Presswerk Krefeld-KdNr.3613261001-2007-05-07 16:10 ww 30 w.EN 10083-3:2006 (E) Key X Y 1 2 3 Distance from quenched end of test piece. mm Hardness.EN 10083-3:2006 (E) Key X Y 1 2 3 Normen-Download-Beuth-Presswerk Krefeld-KdNr. HRC HH-grade HL-grade H-grade w.6963824-LfNr.C hardness in the end quench hardenability test fx 31 Distance from quenched end of test piece. c om .3613261001-2007-05-07 16:10 ww w. bz Figure 1d — Scatter bands for the Rockwell . C hardness in the end quench hardenability test fx w. c om . HRC HH-grade HL-grade H-grade Normen-Download-Beuth-Presswerk Krefeld-KdNr. mm Hardness. bz Figure 1e — Scatter bands for the Rockwell .EN 10083-3:2006 (E) Key X Y 1 2 3 Distance from quenched end of test piece.6963824-LfNr.3613261001-2007-05-07 16:10 ww 32 w. 6963824-LfNr. HRC HH-grade HL-grade H-grade w. bz Figure 1f — Scatter bands for the Rockwell . mm Hardness.C hardness in the end quench hardenability test fx 33 Distance from quenched end of test piece.3613261001-2007-05-07 16:10 ww w.EN 10083-3:2006 (E) Key X Y 1 2 3 Normen-Download-Beuth-Presswerk Krefeld-KdNr. c om . bz Figure 1g — Scatter bands for the Rockwell .3613261001-2007-05-07 16:10 ww 34 w.EN 10083-3:2006 (E) Key X Y 1 2 3 Distance from quenched end of test piece.C hardness in the end quench hardenability test fx w.6963824-LfNr. mm Hardness. HRC HH-grade HL-grade H-grade Normen-Download-Beuth-Presswerk Krefeld-KdNr. c om . 6963824-LfNr. bz Figure 1h — Scatter bands for the Rockwell .3613261001-2007-05-07 16:10 ww w. mm Hardness. HRC HH-grade HL-grade H-grade w.EN 10083-3:2006 (E) Key X Y 1 2 3 Normen-Download-Beuth-Presswerk Krefeld-KdNr.C hardness in the end quench hardenability test fx 35 Distance from quenched end of test piece. c om . C hardness in the end quench hardenability test fx w.3613261001-2007-05-07 16:10 ww 36 w. bz Figure 1i — Scatter bands for the Rockwell . mm Hardness.6963824-LfNr. c om .EN 10083-3:2006 (E) Key X Y 1 2 3 Distance from quenched end of test piece. HRC HH-grade HL-grade H-grade Normen-Download-Beuth-Presswerk Krefeld-KdNr. c 37 om .3613261001-2007-05-07 16:10 ww w.EN 10083-3:2006 (E) Key X Y 1 2 3 Normen-Download-Beuth-Presswerk Krefeld-KdNr. mm Hardness.C hardness in the end quench hardenability test fx Distance from quenched end of test piece. bz Figure 1j — Scatter bands for the Rockwell .6963824-LfNr. HRC HH-grade HL-grade H-grade w. 6963824-LfNr.C hardness in the end quench hardenability test fx w.3613261001-2007-05-07 16:10 ww 38 w. mm Hardness.EN 10083-3:2006 (E) Key X Y 1 2 3 Distance from quenched end of test piece. bz Figure 1k — Scatter bands for the Rockwell . c om . HRC HH-grade HL-grade H-grade Normen-Download-Beuth-Presswerk Krefeld-KdNr. bz Figure 1l — Scatter bands for the Rockwell . mm Hardness.EN 10083-3:2006 (E) Key X Y 1 2 3 Normen-Download-Beuth-Presswerk Krefeld-KdNr.3613261001-2007-05-07 16:10 ww w. HRC HH-grade HL-grade H-grade w.C hardness in the end quench hardenability test fx Distance from quenched end of test piece.6963824-LfNr. c 39 om . mm Hardness. bz Figure 1m — Scatter bands for the Rockwell . c om .EN 10083-3:2006 (E) Key X Y 1 2 3 Distance from quenched end of test piece.C hardness in the end quench hardenability test fx w.6963824-LfNr. HRC HH-grade HL-grade H-grade Normen-Download-Beuth-Presswerk Krefeld-KdNr.3613261001-2007-05-07 16:10 ww 40 w. 6963824-LfNr.EN 10083-3:2006 (E) Key X Y 1 2 3 Normen-Download-Beuth-Presswerk Krefeld-KdNr. HRC HH-grade HL-grade H-grade w.3613261001-2007-05-07 16:10 ww w. mm Hardness. c 41 om .C hardness in the end quench hardenability test fx Distance from quenched end of test piece. bz Figure 1n — Scatter bands for the Rockwell . C hardness in the end quench hardenability test Normen-Download-Beuth-Presswerk Krefeld-KdNr. mm Hardness.6963824-LfNr. bz fx w.EN 10083-3:2006 (E) Key X Y 1 2 3 Distance from quenched end of test piece.3613261001-2007-05-07 16:10 ww 42 w. HRC HH-grade HL-grade H-grade Figure 1o — Scatter bands for the Rockwell . c om . c 43 om . mm Hardness.EN 10083-3:2006 (E) Key X Y 1 2 3 Normen-Download-Beuth-Presswerk Krefeld-KdNr.6963824-LfNr.C hardness in the end quench hardenability test fx Distance from quenched end of test piece. HRC HH-grade HL-grade H-grade w. bz Figure 1p — Scatter bands for the Rockwell .3613261001-2007-05-07 16:10 ww w. c om . HRC HH-grade HL-grade H-grade Normen-Download-Beuth-Presswerk Krefeld-KdNr.C hardness in the end quench hardenability test fx w. mm Hardness.EN 10083-3:2006 (E) Key X Y 1 2 3 Distance from quenched end of test piece. bz Figure 1q — Scatter bands for the Rockwell .3613261001-2007-05-07 16:10 ww 44 w.6963824-LfNr. c om . bz Figure 1r — Scatter bands for the Rockwell .C hardness in the end quench hardenability test fx 45 Distance from quenched end of test piece.EN 10083-3:2006 (E) Key X Y 1 2 3 Normen-Download-Beuth-Presswerk Krefeld-KdNr.3613261001-2007-05-07 16:10 ww w.6963824-LfNr. HRC HH-grade HL-grade H-grade w. mm Hardness. bz Figure 1s — Scatter bands for the Rockwell . HRC HH-grade HL-grade H-grade Normen-Download-Beuth-Presswerk Krefeld-KdNr.EN 10083-3:2006 (E) Key X Y 1 2 3 Distance from quenched end of test piece. c om .3613261001-2007-05-07 16:10 ww 46 w.6963824-LfNr.C hardness in the end quench hardenability test fx w. mm Hardness. HRC HH-grade HL-grade H-grade w. mm Hardness. bz Figure 1t — Scatter bands for the Rockwell .6963824-LfNr.3613261001-2007-05-07 16:10 ww w.C hardness in the end quench hardenability test fx 47 Distance from quenched end of test piece. c om .EN 10083-3:2006 (E) Key X Y 1 2 3 Normen-Download-Beuth-Presswerk Krefeld-KdNr. bz Distance from quenched end of test piece. HRC HH-grade HL-grade H-grade Figure 1u — Scatter bands for the Rockwell . mm Hardness.C hardness in the end quench hardenability test fx w. c om .3613261001-2007-05-07 16:10 ww 48 w.EN 10083-3:2006 (E) Key X Y 1 2 3 Normen-Download-Beuth-Presswerk Krefeld-KdNr.6963824-LfNr. 6963824-LfNr. HRC HH-grade HL-grade H-grade w. bz Figure 1v — Scatter bands for the Rockwell .EN 10083-3:2006 (E) Key X Y 1 2 3 Normen-Download-Beuth-Presswerk Krefeld-KdNr.3613261001-2007-05-07 16:10 ww w.C hardness in the end quench hardenability test fx 49 Distance from quenched end of test piece. mm Hardness. c om . the requirements for the mechanical properties in the quenched and tempered condition shall be verified on a reference test piece. one test piece shall be inspected per cast for the determination of the austenitic grain size. Figure 1 for bars and rods and in accordance with EN 10083-1:2006. the quenched grain size shall be determined. A. ww A. In the case of bars and rods. while taking into consideration the indications for the determination of the ruling section given in EN 10083-1:2006. When tested in accordance with EN ISO 643.EN 10083-3:2006 (E) Annex A (normative) Options NOTE 1 One or more of the following supplementary or special requirements may be agreed upon at the time of enquiry and order.3613261001-2007-05-07 16:10 In the second case. pretreatment at 1 150 °C for 30 min/air shall be carried out in order to produce a uniform starting condition. the sample to be quenched and tempered shall. c om . bz fx w. Normen-Download-Beuth-Presswerk Krefeld-KdNr. have the cross-section of the product. 90 min/water. In the first case. annex B. for steels with a lower carbon content limit ≥ 0.1 Mechanical properties of reference test pieces in the quenched and tempered condition For deliveries in a condition other than quenched and tempered.35 % : (850 ± 10) °C. In all other cases the dimensions and the manufacture of the sample shall be agreed at the time of enquiry and order. A. The details of the heat treatment shall be given in the inspection document.35 % : (880 ± 10) °C. the aluminium content shall also be agreed.3 In cases of dispute. unless otherwise agreed.6963824-LfNr. be taken in accordance with EN 10083-1:2006. 90 min/water. The test pieces shall. Non-metallic inclusion content The microscopically determined non-metallic inclusion content shall be within agreed limits when tested according to a procedure to be agreed at the time of enquiry and order (see EN 10083-1:2006. where appropriate. 50 w. it shall also be agreed whether this grain size requirement is to be verified by determining the aluminium content or micrographically. If specific testing is ordered. Annex A. Figure 3 for flat products. NOTE 2 The numbering of clauses is the same as in EN 10083-1:2006.2Fine grain steel This supplementary requirement concerns only the verification of the fine grain size. verification requires a special agreement. Sampling and sample preparation shall be as specified in EN ISO 643. the steel shall have an austenite grain size of 5 or finer. The samples shall be quenched and tempered in accordance with the conditions given in Table 11 or as agreed at the time of enquiry and order. Hardening shall be carried out under the following conditions for the purposes of determining the quenched grain size:   for steels with a lower carbon content limit < 0. however. The details of these requirements may be agreed upon between the manufacturer and purchaser at the time of enquiry and order if necessary. Unless otherwise agreed at the time of enquiry and order. Annex E). unless otherwise agreed. NOTE 1 The requirements for non metallic inclusion content apply in every case. 6 Special agreements for marking The products shall be specially marked (e. c The conditions for sampling shall be in accordance with EN ISO 14284.EN 10083-3:2006 (E) NOTE 2 For steels with a specified minimum sulphur content the agreements should only concern the oxides. A.4 Non-destructive testing Steel flat products of thickness equal to or greater than 6 mm shall be tested ultrasonically in accordance with EN 10160 and steel bars shall be tested ultrasonically in accordance with EN 10308. A. Other products shall be non-destructively tested in accordance with a method to be agreed at the time of enquiry and order and to acceptance criteria also to be agreed at the time of enquiry and order. by bar coding in accordance with EN 606) in a way agreed upon at the time of enquiry and order. the chemical composition shall be determined in accordance with a reference method taken from one of the European Standards in CR 10261.3613261001-2007-05-07 16:10 ww w. Normen-Download-Beuth-Presswerk Krefeld-KdNr.g. In the case of dispute about the analytical method.5 Product analysis One product analysis shall be carried out per cast for elements for which values are specified for the cast analysis of the steel type concerned. om . bz 51 fx w.6963824-LfNr. A. 1 — Comparison of steel grades EN 10083-3 ISO 683-1:1987 a Germanya xw .6963824-LfNr.7035 1.6747 1.7225 1. this means that there are practically no differences in the chemical composition compared with EN 10083-3.7227 o Italya Sweden SS.7228 1.b 50CrMo4 1. If it is given in square brackets.8159 (51CrV4) If a steel grade is given in round brackets.steel Spaina Name 38Cr4 38Cr41 42Cr4 42Cr41 40CrMo4 40CrMo41 51CrV4 Number F1201 F1206(1) F1202 F1207(1) F1252 F1257(1) F1430 (38 C 2) (32 C 4) (32 C 4 u) (38 C 4) (38 C 4 u) 42 C 4 42 C 4 u 25 CD 4 25 CD 4 u (34 CD 4) (34 CD 4 u) 42 CD 4 42 CD 4 u (41Cr4) (41Cr4) (25CrMo4) (25CrMo4) (35CrMo4) (35CrMo4) (42CrMo4) (42CrMo4) 35 NCD 16 (50CV 4) (39NiCrMo3) (50CrV4) 2245 2225 2234 2244 2541 30 CND 8 - Normen-Download-Beuth-Presswerk Krefeld-KdNr.7218 1.7003 1.7033 1. this means that the chemical composition differs only slightly from EN 10083-3. 52 zf (708M50) (817M40) [823M30] [835M30] [735A50] .7038 1.EN 10083-3:2006 (E) Annex B (informative) Comparison of steel grades specified in this European Standard and ISO 683-1:1987 and other steel grades previously standardized nationally Table B. this means that greater differences exist in the chemical composition compared with EN 10083-3.7226 1.7035 1.7003 1.7037 1.7039 1.7034 1.7213 1.6580 35NiCr6 1.7218 1.6510 34Cr4 34CrS4 37Cr4 37CrS4 41Cr4 41CrS4 25CrMo4 25CrMoS4 34CrMo4 34CrMoS4 42CrMo4 42CrMoS4 50CrMo4 Name 38Cr2 46Cr2 34Cr4 34CrS4 37Cr4 37CrS4 41Cr4 41CrS4 25CrMo4 25CrMoS4 34CrMo4 34CrMoS4 42CrMo4 42CrMoS4 Number 1.7213 1.7034 1.7006 1.7006 1.7225 1.5815 1.8159 30NiCrMo16-6 50CrV4 (36CrNiMo6) (31CrNiMo8) - ww 1.7039 1.7220 1.6580 1.7038 1.3613261001-2007-05-07 16:10 34Cr4 34CrS4 37Cr4 37CrS4 41Cr4 41CrS4 25CrMo4 25CrMoS4 34CrMo4 34CrMoS4 42CrMo4 42CrMoS4 50CrMo4 34CrNiMo6 30CrNiMo8 35NiCr6 36NiCrMo16 39NiCrMo3 30NiCrMo16-6 51CrV4 a (530M32) (530M36) (530M40) (708M25) (708M32) (708M40) - .6582 1.7220 1.6773 1.6582 1.7227 1.c United France a Kingdoma Name 38Cr2 46Cr2 Number 1.6747 1.7033 1.7228 (34CrNiMo6) 30CrNiMo8 1.7037 1.7226 1. If there are no brackets around the steel grade. 1 contains reference data for the maximum diameter at certain core hardness after hardening in oil or water.EN 10083-3:2006 (E) Annex C (informative) Reference values for the maximum diameter at a certain core hardness of steels with boron Table C.3613261001-2007-05-07 16:10 ww w. Table C. c Core hardness HRC 34 40 45 a 900 880 850 900 880 850 38 42 45 fx For 80 % martensite. Normen-Download-Beuth-Presswerk Krefeld-KdNr.6963824-LfNr. bz 53 om Approximate maximum diameter mm Water 32 38 40 Oil 25 30 32 43 45 80 52 55 95 .1 — Reference values for the maximum diameter at a certain core hardness of steels with boron Steel name Hardening temperature °C 20MnB5 30MnB5 38MnB5 27MnCrB5-2 33MnCrB5-2 39MnCrB6-2 a w. 6963824-LfNr.3613261001-2007-05-07 16:10 ww 54 w.EN 10083-3:2006 (E) Bibliography [1] EN 10021. c om . General technical delivery requirements for steel and iron products Normen-Download-Beuth-Presswerk Krefeld-KdNr. bz fx w.
Copyright © 2024 DOKUMEN.SITE Inc.