Positive Material Identification ProcedureThis content provides you with a sample positive material identification procedure. This PMI test procedure must be modified based your project specification. This procedure has been prepared for industrial plant construction project and contains both shop and site inspections. 1. Introduction The XXX company has been contracted by the xxx to conduct the EPC for XXX Project. This Project includes offshore facilities, platform and undersea pipelines, and onshore facilities for the processing of the reservoir fluid. 2. Project Overview XXX 3. General 3.1 Scope This procedure prescribes the requirements for the positive material identification (PMI) for vessels and piping to verify that alloy materials are of acceptable chemical composition independent of any certificate and marking that may exist, and to assure that correct alloy materials are used at the places where intended. "AV" low stress stamp will be applied for the marking. 3.2 Definition of Contracting Parties Company: XXX Contractor: XXX Vendor: Company who will supply and/or manufacture equipment and/or materials under Purchase Order issued by Contractor Inspector: Inspector dispatched by Contractor/Company or inspector of third party inspection agency designated by Contractor Grade Verification.: .3 Referenced Documents This Procedure shall be read in conjunction with the following Documents: XXX Project Quality Plan XXX General Requirements for Welded Fabrication XXX Specification.3 Process Piping ASME Section II Part C Materials DINEN 10204 documents Metallic products Types of inspection ASTM E 1476 Standard Guide for Metals Identification. Design and Fabrication of Pressure Vessels XXX Steel Piping Fabrication XXX General Work Procedure for Welding XXX Non Destructive Testing Procedure XXX Site Material Approval Procedure ASME B31. and Sorting ASTM E 572 Standard Test Method for Analysis of Stainless and Alloy Steels by X-ray Fluorescence Spectrometr ASTM E 322 Standard Test Method for X-Ray Emission Spectrometric Analysis of Low. Commissioning Procurement.Alloy Steels and Cast Irons 4. Extent of PMI 4.1 Materials 4. Construction & SBM: Single Buoy Mooring PMI: Positive Material Identification 3.1 This procedure shall be applied to the following low alloy / Stainless Steel / high alloy materials. i.e.1.EPCC: Engineering. 5 Mo and/or 3. drums.5 Ni 2) Type 316/316L stainless steel 3) Type 321/347 stainless steel 4) 11-13% Cr (Type 410/410S/40S) 5) Nickel Alloy such as INCONEL&HASTELLOY 6) Cooper Nickel Alloy 7) Aluminum -Bronze 8) Titanium 9) Other materials as mentioned in table 1.) to the pressure containing parts of Pressure Vessels and Piping mentioned below para.1 and 2.2.1. nozzle(pipe).0. tubes etc. flanges.2 Positive Material Identification Extent of Examination 4. internal lining. Elements to be determined during PMI shall be as per Table. air cooled heat exchangers b) Fired heaters (only heater coils) 2) Piping a) Pipes b) Fittings c) Flanges . 4.1) Low alloy steel containing more than 1 Cr . such as reactors. 1) Equipment a) Pressure vessels. towers.1 This procedure shall be applied to the pressure containing parts of following items including welded joints and components (plates. respectively: Also it shall be applied to the similar part in the package units. Examination of the base materials to be carried out. heat exchangers. forgings. 5.2. When access is not possible to the inside and/or weld size is small.1 After installation on the final location at site. 5.3 Finished groove weld of alloy equipment assembled at Site shall be examined on the 5% random basis for all welded joints. minimum 3 points on each length of examined pipe to be carried out.4 PMI of Components at Site weld weld weld weld .3 Positive Material Identification of Welded Joints at Site 5. 5.2. 5.2 PMI of Piping Bulk Materials at Vendor's Shop 5.3.3. all remainder of that batch and two subsequent inspection batches shall be performed 20% PMI examination. 5. Unless otherwise specified. For PMI test of tagged items.1 The vendor shall perform PMI examination of all samples chosen at random from an inspection batch. examination of the outside of a only shall be acceptable. 5. All parts that are tested in the fabricated form should be 100% verified. Sampling Procedure 5. 5. mill certificates shall cover all bulk items and components before fabrication.3. the color code marked on the piping systems shall be checked and recorded by the Construction Contractor.2 Finished groove weld in alloy piping system shall be examined on the one point of each joint for 5% groove weld joint. inspection will be carried out at random for at least 1 (one) per each heat.2 If any item from sample is found to be unacceptable.1 Positive Material Identification (PMI) of Equipment at Vendor's Shop The vendor shall perform PMI examination of the finish on the one point of each joint inside and outside for all joints.d) Valves The welded joints and components shall be tested after fabrication. material traceability shall be performed in accordance with the document No.4 The construction contractor shall submit examination procedures which include following: 6. 6.1 Portable X-ray emission or fluorescence spectrometers with direct reading of alloy grade or composition in the applicable range. 6.PMI of equipment is not required at site since PMI examination of these items shall be done at Vendor's shop.4.3 Control sheet of examination 6.1 Equipment to be used 6. 6.1 Instruments used to perform PMI shall conform to one of following: 6.4. If material traceability has not been done properly. such as "Texas Nuclear 9266" or META scope or equivalent.2 Molybdenum in type 316 and 316L stainless steel may be checked with reagent.1.4 Report form 7. refer to Method Statement for Positive Material Identification . Also for PMI of deposited weld metal at site.3 Reagent shall be washed off with water not to adversely affect to the end use of items and corrosion. XXX Procedure for Heat Number Traceability for Piping Material.1.4.XXX. PMI is required for such part of piping compounded at site.4.2 The traces of PMI examination shall be taken off not to adversely affect the end use of items. Positive Material Identification Examination Method 6. fittings & flanges. 6. Positive Matreial Identification Acceptance Criteria Alloy elements specified in chemical composition of materials shall be detected at the PMI examination. but for piping components such as pipes. 6.2 Washing of reagent 6. Acceptance criteria the PMI . 1. Acceptable range shall include the tolerance of the measuring equipment.1.1 Item number of equipment.range for all the project material to be tabulated as per related standard.1. etc.1.1 The vendor or the Construction contractor shall record the results of examination on a report form which indicates following as a minimum: 9.6 Chemical composition detected 9.1. model.5 Number of items examined 9. (In the meantime.1C or 3.1 For piping bulk materials.2 Material specification number and grade 9. Records 9.8 Signature and date of the representative of the supplier or the Construction Contractor 9. name of piping bulk material or welding joint number of piping systems 9.1. PMI shall be witnessed by Company according to inspection and test plan enclosed in the Material Requisition).7 Measuring equipment used for examination with type. 9.1.4 Inspection batch size 9.1.1.1.9 Calibration certificate identification equipment of the positive material 9. 9.3 Mill certification number 9. The color-coding for pipes shall be marked whole length of pipes after acceptance has been made.1. which is provided with manual by equipment's maker 8.2. 9.11 PMI performed by the Vendor shall be presented to the Company/Contractor's inspector for his review and will be .10 PMI report shall be as per DIN 50049 or BS/EN 10204 type 3. Color Code 8. all items in an inspection batch shall be marked color code by the vendor. Ni. 1% Mo 11-13% Cr (Type 410/410S/40S) 304 (L) 310 309 (L) 309 Nb 316 (L) 321 347 Alloy 600 Alloy 625 Alloy 800/800H AWS A5. Nb(Cb). Cu Cr. Ni. Al. Ti. Ti Cr.5% Mo 2.14 ERNiCr-3 2205 Duplex Admiralty Brass Aluminium Brass Cupro-nickel (70-30) Cupro-nickel (90-10) Monel 400 Titanium Elements to be determined Cr.compiled into Manufacturer's Data Records at the completion of fabrication or manufacturing. Nb(Cb) Cr. As Cu. Ni. Mo Cr.11 ENiCrFe-2 AWS A5. 0. Ti Cr.25% Cr. Ni. Mo. Ni.11 ENiCrFe-3 AWS A5.25% Cr. Mo. Mo. 1. Mo Cu. Ti Cr. Mo Cr. Sn.0% Mo 9% Cr. Ti Cr. Ni. Ni. Ti Cr. Mo. Nb(Cb) + Ta Cr. Ni. Ti Cr. Ni Cu. 0. Nb(Cb). Ni Cr. Ni. Ni Ti .5% Mo 1. Mo Cr. Mo. Table. Mo. Zn Cu. Ti. Al. Nb(Cb) + Ta Cr. Ni. Ni. Ni. Nb(Cb) + Ta Cr. Ni. NI Cu. Nb(Cb) + Ta Cr. Nb(Cb). Nb(Cb). Nb(Cb). Mo Cr Cr. Nb(Cb).1 Elements to be determined during PMI Materials (1) 1% Cr. html#sthash..See more at: http://www.inspection-for-industry.com/positive-materialidentification.sCz7YQgD.dpuf .
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