Rev: 12/06/2017
Taught by: Machining Superintendent, Machining QC Leadman
Objective:
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ASME Section IX |
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SLB WPS-TF-4130 or latest version |
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Part CWS-2-Qualification of Welders and Welding Operators |
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Specification for the Welding 4130 Low Alloy Steel |
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Test for Plate of Limited Thickness |
Syllabus:
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Code: ASME Section IX |
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WPS-TF-4130 or current revision |
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Joint type: Groove |
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Material spec. AISI 4130 Low Alloy Steel |
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Filler metal: AWS ER 70S-6 / E90T5-D2 |
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Process: GMAW Root/ FCAW Filler |
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Joint position: 1G Rotated |
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Material size/thk: 4*4.75 and 0.438 Thick |
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Preheat Temperature Min/Interpass Temperature Max: 200° F /800° F |
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Shielding Gas, Mix, flow Rate: Argon/ CO2-90% / 10%, 30-40 CFH; Filler-Argon/CO2 90% / 10%, 30-40CFH |
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Size of Filler Metals: 0.035" |
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Current: DCRP |
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Weld Testing: Visual per QW-302.4 / 2. Transverse side bends per QW-161.1 and QW-462.2 Radiographic examination per QW-191 and QW-302.2 |
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Weld requires elliptical coupon, start and stop overlapped with 0.125 of open root |
Completion: After successful completion of welding and testing the operator is qualified to weld the material and joints that he has been tested on.
The welds that have been made for testing will be submitted to Steel Inspectors of Texas. for qualification. The results of their evaluation will certify or reject the welder operations.
Evidence of welder qualification will be kept in the employee training file. Employee will remain qualified until such time that employee has not welded for a period of six months. The Manager has the right to revoke qualification at any time that employee fails to follow the guidelines set forth in the MPS concerning welding.
Notes:
Changes to this training module needs to be
coordinated with Steel Inspectors of Texas or other appropriately
approved supplier.