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    WPS-ASME-009-1 Rev1

    Uploaded by

    Ahmed Lepda
    This document provides a welding procedure specification for gas and arc welding of steel pipes for a gas field development project. It specifies the base and filler metals, welding positions, preheat and interpass temperatures, post weld heat treatment parameters, and electrical characteristics for gas tungsten arc welding and shielded metal arc welding. Welding will be done in all positions using multiple passes with gas shielding.

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    © All Rights Reserved
    Download as XLS, PDF, TXT or read online from Scribd

    WPS-ASME-009-1 Rev1

    Uploaded by

    Ahmed Lepda
    999 views1 page
    This document provides a welding procedure specification for gas and arc welding of steel pipes for a gas field development project. It specifies the base and filler metals, welding positions, preheat and interpass temperatures, post weld heat treatment parameters, and electrical characteristics for gas tungsten arc welding and shielded metal arc welding. Welding will be done in all positions using multiple passes with gas shielding.

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    WPS-ASME-009-1 rev1.xls

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    This document provides a welding procedure specification for gas and arc welding of steel pipes for a gas field development project. It specifies the base and filler metals, welding positions, preheat and interpass temperatures, post weld heat treatment parameters, and electrical characteristics for gas tungsten arc welding and shielded metal arc welding. Welding will be done in all positions using multiple passes with gas shielding.

    Copyright:

    © All Rights Reserved
    Download as XLS, PDF, TXT or read online from Scribd
    Download as xls, pdf, or txt
    999 views1 page

    WPS-ASME-009-1 Rev1

    Uploaded by

    Ahmed Lepda
    This document provides a welding procedure specification for gas and arc welding of steel pipes for a gas field development project. It specifies the base and filler metals, welding positions, preheat and interpass temperatures, post weld heat treatment parameters, and electrical characteristics for gas tungsten arc welding and shielded metal arc welding. Welding will be done in all positions using multiple passes with gas shielding.

    Copyright:

    © All Rights Reserved
    Download as XLS, PDF, TXT or read online from Scribd
    Download as xls, pdf, or txt
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    WELDING PROCEDURE SPECIFICATION(WPS)

    (ASME SEC. IX)

    Project : South Pars Gas Field Development(Phases 9&10) Date : 30 DEC,05


    WPS No. CON-WPS-ASME-009-1 Rev. 1 JOINTS (QW-402)
    PQR No. CON-PQR-ASME-016 Rev. 1 Joints Design Single V Butt Joint
    Welding Process GTAW-SMAW Backing ■ No for GT ■ Yes for SM
    Types Manual □ Semi-Automatic □ Automatic Backing Material or Type GTAW root passes
    BASE METALS (QW-403) For LTCS+NACE
    P-No. 1 G-No. 1 to P-No. 1 G-No. 1
    Thickness Range 16.0≤ t ≤ 47.6 mm
    Diameter Range All
    FILLER METALS (QW-404)
    F-No. 6&4 A-No. 1
    Spec. No.(SFA) SFA : 5.28 & 5.5
    AWS No.(Class) ER-80S-Ni1 & E 7018G
    Size of Filler Metal 2.4,3.2, 4.0
    GTAW: Up to 10.0 mm
    Deposit Thickness Qualified
    SMAW: Up to 37.6 mm

    Trade Name OK Tigrod 13.24 Ø 2.4


    OK 48.08 Ø 3.2&4.0
    POSITION (QW-405) ELECTRICAL CHARACTERISTICS (QW-409)
    Position ALL Current AC or DC DC
    Welding Progression Up Hill Polarity, Amps & Volts(Range) DCSP & DCRP
    Tungsten Electrode Size & Type 1.6 ~ 2.4 mm & EWTh-2
    PREHEATING & INTERPASS TEMP. (QW-406) Transfer Mode N/A
    Preheat Temp. Min. 75 º C,100º C Note (1)
    Wire Feed Speed N/A
    Interpass Temp. Max. 198 º C
    Preheat Maintenance N/A TECHNIQUE (QW-410)
    String or Weave Bead Both(Note3)
    POST WELD HEAT TREATMENT (QW-407) Cleaning Method Grinding & Brushing
    Temperature Range ( º C ) 610 ±10 °C Multi or Single Pass/side Multiple
    Time Range 1/hr for 25mmNote(2) Single or Multiple Electrodes Single
    Heating Rate ( º C ) Max.220˚C / hr/inch
    Cooling Rate ( º C ) Max.275˚C / hr/inch GAS (QW-408)
    Percent Composition Gas Mixture Flow Rate(l/min)
    Shielding Argon 99.99% (9 ~12 )
    Trailing N/A N/A N/A
    Backing N/A N/A N/A
    ELECTRODE
    Welding Filler Metal Current Volt Travel Speed
    Weld Layers Others
    Process Class Dia(mm) Type Polar. Amp Range(A) Range(V) Range(cm/min)
    1st GTAW ER 80S-Ni1 2.4 DC SP 140 ~ 160 10 ~ 12 6~8 Heat Input
    2 nd GTAW ER 80S-Ni1 2.4 DC SP 180 ~ 210 11 ~ 13 9~ 12 ≥ 13 Kj/cm
    Filling SMAW E7018G Ø3.2&4.0 DCRP 120 ~ 180 21 ~ 28 8 ~ 10 ≤ 30.2 Kj/cm
    Cap SMAW E7018G 3.2 DCRP 110 ~ 130 20 ~ 24 9 ~ 10

    Note : 1- When wall thickness is 1"over 2- For over 1" add 2.4 minute/1mm
    3- Oscillation for weave bead is < 3 time of OD electrode

    Name
    Signature
    Date
    SUBCONTRACTOR CONTRACTOR TPA/COMPANY
    Page 1 of 1

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