WPS(WELDING PROCEDUCE SPECIFICATION ) Present by : Nguyen Thi Hang Time : 200 mins 1/20 WPS Prepared by Nguyen Thi Hang Date 08.7.2008 Reviewed by Nguyen Thi Hang Date 08.7.2008 Approved by Kim Byoung IL Date 10.7.2008 Training Objective After finished lesson we can : 1. Know WPS process flow 2. Understand what is WPS ? 3. Read and use WPS in Drawing 2/20 WPS process flow WPS no character Base metal ( P. 4. 2.no ) Preheat PWHT Gas Technique Filler/erect. 5. 7. Charact Current/Polarity Welding Symbol 3/20 . 10. 6. 3. 8.CONTENT 1. 9. 1. AWS W/D data Test specimen prepare Bending .WPS PROCESS FLOW WPS Draft Full Supervision & control Test coupon Welding ASME . NDE Test Result PQR Note PQR Approve WPS 4/20 .. 1 WPS FORM 5/20 .1. TM ( GTAW + SMAW) Ex ) .MA (welding process at the SMAW + SAW.G (GMAW) : Gas Metal Arc Welding .SAC) : Submerged Arc Welding (Automative) .What is K-M-0308-102 (cladding) ? 6/20 . tag) 0303 : joining by “ P3” material on P3 material .M (SMAW) : Shield Metal Arc Welding .What is A.1. ANSI/ASME B31.TM-4343-101 (GROOVE) ? . AWS D1.Example of joining 2 base metal (GROOVE or fillet . ASME II. ASME IX.1 “A” : ASME (American Society Machanical Engineer ) “ W ” : AWS ( American Welding Socieity ) “ K ” : KEPIC ( Korea Electric Power Industry Code )` Base metal (P no) : .A (SAW.Example of build up . ASME VIII.T (GTAW) : Gas Tungsten Arc Welding . WPS number It is the revised number Application code :ASME I.2.F (FCAW) : Flux Core Arc Welding .SAC) : use 2 same time . buttering and cladding welding for 1 base metal 0343 : build up by “F43” inconnel electrodes on “P3” material This is distinguished by welding process : . B.7 High alloy steel.5Ni-1.C .SA210-C .10 Other alloy steel ( contain 9% Ni) .8 High alloy steel.SA515-60.75% alloy (1.) P-No.3.65. below total 10% alloy P-No.Tube SA178-A. ferrite stainless steel (18 Cr) P-No. Base Metal ▶Introduction for P-No briefly: P-No.6 High alloy steel.1 Carbon steel (Minimum tensile strength is 40~75KSI) Ex: Pipe SA106A.1 (nearly not used.4X Ni and Ni alloy steel ▶Group –no: Heat treatment Group no Tensile Strength As rolled condition 1 Below 70 ksi 2 Over 70 ksi 3 Below 70 ksi 4 7/20 Over 70 ksi Quenching & Tempered condition . austenite stainless steel (18Cr-8Ni) P-No.C P-No.5 Mo) P-No.C.2 Same P-No. below 0.75~2 % Cr and below total 2.SA668B.75% Cr and below total 2% alloy (0.25 Cr0.4 Low alloy steel.9 Ni alloy steel (max 5%) P-No.SA516-65.2X Al and Al alloy steel P-No.Forging SA105. Plate SA36 .70 .3a : 3.SA210-A1.3X Cu and Cu alloy steel P-No.3 Low alloy steel. martensite stainless steel (13 Cr) P-No.SA192.5Mo-V –Forging –Tensile min 90 ksi P-No.70.5 Alloy steel.75Cr-0. 0.5 Mo ) SA 508 Cl.duplex Aus + Fer P-No. 25Cr-1Mo.SB523 P-1 P-2 P-3 P-4 P-5 : : : : : SA387Gr2. … 2.316.409.3Cr-1Mo.SA106. 25Cr-20Ni(310). 1.1 P.no (ASME code–section IX ) ASME (Ferrus Metal) (Non Ferrus Metal) C. 13Cr.310 SA350LF5. … P-10 : Mn-V. … P-9 : 2.SA537Cl1 P-21 to 25 : Aluminum & Al-base alloys P-31 to 35 : Copper & Cu-base alloys P-41 to 47 : Nickel & Ni-base alloys P-51 to 53 : Titanium & Ti-base alloys P-61 to 62 : Zircinium & Zr-base alloys SB209.SB690 SB265. 1/2Cr-1/2Mo.SA352-LC3 SA225C. … P-11 : 9Ni.25Cr-1/2Mo.SA387-22 (5B)SA336F91 (5C)SA542 SA240-403.3. C-Si.5Ni.SA790 SA522TpII. 1Mn-1/2Mo. … P-8 : 18Cr-8Ni(304). 17Cr-Ti. 26Cr-4Ni-Mo.SB234 SB11. … SA36. 16Cr-12Ni-2Mo(316). 18Cr-10Ni-Ti or Cb(347).SA182F1. 15Cr. … P-6 : 12Cr.430 SA240-304.25Ni. 3/4Cr-1/2Ni-Cu. C-Mn-Si.25Cr-1/2Mo-Cu. Mn-Mo-Ni.SB337 SB493.321. C-Mn. 18Cr-2Mo-Ti.SA612. … 1. 3Cr-1Mo-1/4V-Ti-B.SA517-B 8/20 . 4.5∼9Cr-1Mo.SA508Cl2 SA387-11. 23Cr-12Ni(309).SA423 (5A)SA182F21.SA335P11. 13Cr-4Ni-Mo P-7 : 12Cr-Al. 3.5Ni.SB359 SB160.SA516.410 SA240-405. 29Cr-4Mo.410s. … Similar to P-1 C-1/2Mo.9Cr-1Mo-V-Cb-N.347 SA240-309. 3 : 100 C.1.1.2.8 : none ▶ Interpass Temp Max : .3 :100 C. 5A .4. 6.2.3 : 2040 C P-No.Gr 1.2. Gr.3 : 100 C .3 %C & t >25 mm :80o C P-No3.7 & No .2. Preheat ▶ ASME I . 5C : 1500 C . min tensile strength 60 ksi or 6% Cr and t >13 mm : 2040C P-No. min tensile strength 70 ksi . t>16 mm : 800 C P-No3. 0.5B .Alloy : max 1500 C 9/20 . Appendix -100 : P-No1.1.Austenitic SUS : max 1770 C . Gr. Gr. min tensile strength 60 ksi or t >13 mm : 1210 C P-No.High –Ni .Cu.C/S & Low alloy steel : max 3500 C . ▶ ASME – section I : Power Boiler 1 hr/ in : minimum holding time at a normal Temperature for Weld thichness (mm) 10/20 .ép .hàn ….nhằm loại bỏ hơi ẩm và loại bỏ ứng suất . PWHT ▶Purpose PWHT: Hồi phục tính chất của vật liệu bị giảm độ mềm dẻo do thay đổi cấu tạo do ảnh hưởng nhiệt . đóng cứng lại và tồn dư ứng lực sau khi gia công uốn .5. Gas Flow rate of FCAW & TIG shielding gas generally : .6.FCAW : CO2 gas => 15~25 L/MIN .GMAW: Ar + CO2 => 20~25 L/MIN (refer to WPS) 11/20 .GTAW : Ar gas => 8~17 L/MIN . 7.Technique Stickout Approximate distance (refer to WPS) -GMAW : short circuit (6~13) . spray/globular(12~25 ) -FCAW: 15~25 .SAW : 25~35mm -GTAW: N/A 12/20 . 13/20 . Filler/erect.8. - Active type :help eliminating porosity and weld cracking (Mn . Si for multiple passes on thick plates .They contain a little Mn .Si) it uses for single passes . Charact • Metal transfer mode GMAW/FCAW Short arc Globular arc Spray arc Pulsed arc • • - GTAW : EWth-2 .4 EWth-2 :thorium 2% tungsten electrode (red) EWP : pure tungsten electrode (green) EWZr : Zicronium Tungsten electrode (brown) Flux Type (SAW process) : Neutral type :do not change the composition of weld metal as produced by fusion together of base metal & electrode .OD 2. SAW : AC or DCRP .GMAW : DCRP .FCAW.SMAW: AC or DCRP DCRP (DCEP) DCSP (DCEN) 14/20 .GTAW : DCSP . Current /Polarity • Welding process – Polarity : .9. 10. Welding symbol 15/20 . Brazing 16/20 .4 -98 : Standard Symbol For Welding .Welding Symbol AWS A 2.10. 10. Welding symbol 17/20 . Welding Symbol 18/20 .10. Welding Symbol 19/20 .10. END OF DOCUMENT 20/20 .