Welding Technology

T-Rex develops detailed welding procedure specifications in-house. We have several standard pre-qualified procedures available for immediate use, however, we also frequently develop welding procedures for customer specific project materials upon request. Our capabilities for developing welding procedure specifications include:

  • Welding Procedure Specification (WPS) development based on applicable code requirements such as ASME IX, AWS D1.1, NACE, and/or API 1104.
  • Procedure Qualification Record (PQR) and Welders Qualification Record (WQR) based on the referenced WPS.
  • Procurement of weld coupon and consumables materials with Material Test Reports specific to WPS.
  • Quality inspection during testing.
  • Witness of radiographic inspection and approval of radiographs.
  • Final Document Control of original WPS, PQR, WQR, radiograph read sheets / radiographs, diagnostic testing reports, testing photographs, etc.

Weld Procedure Matrix

AWS D1.1
WPSProcessPos.Groups QualifiedThickness/GradeW.T. RangeO.D.Filler Metal(s)
TREX-SS-01FCAW2G,3G,4GI to II, II to I, II to II1.00″WT API2H to 1.00″WT API2H0.125″ to Unlimited≥24″ODE71T1/T9 (-20)
TREX-SS-02FCAW2G,3G,4GI to II, II to I, II to II1.00″WT API2H to 1.00″WT API2H0.125″ to Unlimited≥24″ODE71T1/T12 (-40)
TREX-SS-03SMAW2G,3G,4GI to II, II to I, II to II1.00″WT API2H to 1.00″WT API2H0.125″ to Unlimited≥24″ODE7018
TREX-SS-04FCAW2G,3G,4GIII to III1.00″WT ASTMA537 to 1.00″WT ASTMA5370.125″ to Unlimited≥24″ODTM-811N1(ESAB E81T1-NiCJH8)
API-1104
WPSProcessPos.Groups QualifiedThickness/GradeW.T. RangeO.D.Filler Metal(s)
TREX-SS-21GTAW/SMAW6G>42ksi <65ksi4.5”/0.531WT API5L X52 to 4.5”/ 0.531WT API5L X520.188” to 0.750”2.375″ to 12.75″ER70S6/E7018
TREX-SS-22GTAW/SMAW6G>42ksi <65ksi4.5”/0.531WT API5L X52 to 4.5”/ 0.531WT 41300.188” to 0.750”2.375″ to 12.75″ER80SD2/E10018D2
TREX-SS-23GTAW/SMAW6G>42ksi <65ksi4.5”/0.531WT 4130 to 4.5”/ 0.531WT 41300.188” to 0.750”2.375″ to 12.75″ER80SD2/E10018D2
TREX-SS-24GTAW/SMAW6G>42ksi <65ksi14”/0.625WT API5L X52 to 14”/0.625WT API5L X520.188” to 0.750”>12.75″ER70S6/E7018
TREX-SS-25GTAW/SMAW6G>42ksi <65ksi14”/0.594WT A694 F52 to 14”/0.625WT API5L X520.188” to 0.750”>12.75″ER70S6/E7018
TREX-SS-26GTAW/SMAW6G≥65ksi6.625”/0.432”WT API5L X65 to 6.625”/0.432”WT API5L X650.188” to 0.750”2.375″ to 12.75″ER80sNi1/E8018C3
TREX-SS-27GTAW/SMAW6G≥65ksi8.625”/0.875”WT API5L X65 to 8.625”/0.875”WT API5L X65>0.750″2.375″ to 12.75″ER80sNi1/E8018C3
TREX-SS-28GTAW/SMAW6G≥65ksi14”/1.093”WT API5L X65 to 14”/1.093”WT API5L X65>0.750″>12.75″ER80sNi1/E8018C3
TREX-SS-29GTAW/SMAW6G≥65ksi6.625”/1.058”WT API5L X65 to 6.625”/1.058”WT 4130>0.750″2.375″ to 12.75″ER80SD2/E1008D2
TREX-SS-30GTAW/SMAW6G≥65ksi6.625”/0.432”WT A694 F65 to 6.625”/0.432”WT 41300.188” to 0.750”2.375″ to 12.75″ER80S2/E10018D2
TREX-SS-31GTAW/SMAW6G≥65ksi8.625”/0.875”WT API5L X65 to 8.625”/0.875”WT API5L F65>0.750″2.375″ to 12.75″ER80sNi1/E8018C3
TREX-SS-32GTAW/FCAW6G≥65ksi8.625”/0.875”WT API5L X65 to 8.625”/0.875”WT API5L X65>0.750″2.375″ to 12.75″ER80SD2/TM-811N1 (ESAB E81T1-NiCJH8)
TREX-SS-33GTAW/SMAW6G≥65ksi6.625”/0.432”WT API5L X70 to 6.625”/0.432”WT API5L X700.188” to 0.750”2.375″ to 12.75″ER80S-D2/E8018C3
TREX-SS-34GTAW/SMAW6G≥65ksi14”/1.093”WT API5L X70 to 14”/1.093”WT API5L X70>0.750″>12.75″ER80S-D2/E8018C3
TREX-SS-35GTAW/FCAW6G>42ksi <65ksi4.5”/0.531″WT API5L X52 to 4.5”/ 0.531WT API5L X520.188” to 0.750”2.375″ to 12.75″ER70S6/E71T-1/T-9
TREX-SS-36GTAW/FCAW6G≥65ksi14”/1.093”WT API5L X70 to 14”/1.093”WT API5L X70>0.750″>12.75″ER80SNi1/ TM-811N1 (ESAB E81T1-NiCJH8)
TREX-SS-37GTAW/FCAW5G≥65ksi8.625”/0.719WT A694F70 to 8.625”/0.719WT API5L X700.188” to 0.750”2.375″ to 12.75″ER80SD2/ TM-811N1 (ESAB E81T1-NiCJH8)
TREX-SS-38GTAW/SMAW6G>42ksi <65ksi4.5”/0.531″WT API5L X52 to 4.5”/0.531WT A694 F600.188” to 0.750”2.375″ to 12.75″ER70S6/E7018
ASME
WPSProcessPos.Groups QualifiedThickness/GradeW.T. RangeO.D.Filler Metal(s)
TREX-SS-41GTAW6GP no.S8 gr.1,2,3 to P no.S8 gr.1,2,30.500”WT 316L to 500”WT 316L0.187″ to2.875″ to unlimited316L

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