Pwps Jo Wps Asme 016 Rev.001 [PDF]

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RDMP RU-V Balikpapan Project



Pre-liminary WELDING PROCEDURE SPECIFICATION(pWPS) WPS No. : JO-WPS-ASME-016 REV. 0 Welding Process GTAW + SMAW □ NO ■ YES Impact (Toughness) Requirement ASME BPVC Sec. IX 2019 Ed Applicable Code :



BASE METALS (QW-403) P-No. 4 P-No. 4 G-No. 1 G-No. 1 to Thickness Range : Groove Weld 16mm ~ 60mm Fillet Weld Unlimited Diameter Range Unlimited ■ NO □ YES Maximum Pass Thickness > 13mm FILLER METALS (QW-404) Process F-No. A-No. Spec. No.(SFA) AWS No.(Class)



GTAW 6 3 A 5.28



SMAW 4 3 A 5.5



ER80S-B2 or equivalent



E8018-B2 or equivalent



Size of Filler Metal See below table See below table Deposit Thickness Qualified Max. 34.02mm Max. 12mm Filler Metal Product Form Bare(Solid) N/A Supplemental Filler Metal N/A N/A POSITION (QW-405) Position Welding Progression



All Up-Hill



PREHEAT & INTERPASS TEMP. (QW-406) Preheat Temp. Min. 120℃ Interpass Temp. Max. 300℃ Preheat Maintenance N/A POST WELD HEAT TREATMENT (QW-407) Temperature Range 650 ~ 705℃ 1h/inch, 15min min Time Range Heating Rate See note Cooling Rate See note Others N/A ELECTRODE Weld Welding Layers Process Root / Hot GTAW Fill SMAW Cap SMAW



Filler Metal Diameter(㎜) Φ2.4 ER80S-B2(1) Φ2.6~4.0 E8018-B2(1) Φ2.6~4.0 E8018-B2(1) Class



PQR No. : JO-PQR-ASME-016 REV. 0 Types Manual (Automatic, Machine, Manual or Semi-Auto) Date : 8-Jul-2021 JOINTS (QW-402) See the attached sheet Fig.1 Joint Design Backing ■ NO □ YES Backing Material or Type N/A Joint Details



See attached sheet Fig. 1



ELECTRICAL CHARACTERISTICS (QW-409) Current AC or DC See below table See below table Polarity, Amps & Volts (Range) Tungsten Electrode Size & Type Φ2.4, EWTh-2 Transfer Mode N/A TECHNIQUE (QW-410) String or Weave Bead Cleaning Method Multi or Single Pass Single or Multi Electrodes Closed to Out Chamber Use of Thermal Process GAS (QW-408) Percent Composition Gas Ar Shielding Backing N/A Trailling N/A



Both Grinding and/or Brushing Multiple Single N/A N/A



Mixture 99.9% N/A N/A



Flow Rate(l/min.) 12 ~ 25 N/A N/A



Current Volt Travel Speed Type Polar. Amp Range (A) Range (V) Range (㎝/min) DCEN 120 ~ 200 10 ~ 15 5 ~ 10 DCEP 100 ~ 130 10 ~ 15 5 ~ 10 DCEP 100 ~ 130 10 ~ 15 5 ~ 10



Other



Note : (1) The specified filler metal class in above table or equivalent (2) As per Para.331.1.4, ASME B31.3. Above 315°C (600°F), the rate of heating and cooling shall not exceed 335°C/h divided by one-half the maximum material thickness in inches at the weld, but in no case shall the rate exceed 335°C/h



Prepared by : Reza Batu Bara Reviewed by : Reza Batu Bara



Verified by Third Party :



Approved by : Andry Arifin



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RDMP RU-V Balikpapan Project



Pre-liminary WELDING PROCEDURE SPECIFICATION(pWPS) WPS No. :



JO-WPS-ASME-016



REV. 0



PQR No. :



JO-PQR-ASME-016



REV. 0



FIG. 1 SHAPE OF EDGE No.



Type of Joint



Shape of Edge



Note



37.5˚±2.5˚



1



Butt Joint



2.4±0.8mm



Branch pipe



45˚



2



1.5±0.8mm



Corner Joint



2.4±0.8mm



1.5



2.4±0.8mm Main run pipe



t Cx



3



Lap Joint



Cx



t = pressure design thickness



Approximately 1/16 in. (2.0 mm) before welding



Cx(min) = 1-1/4t but not less than 3 mm



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