Certified Welding Services & API Work
PSG delivers advanced welding solutions for complex industrial, energy, and municipal projects requiring certification, precision, and long-term reliability. Our certified welding teams are experienced in both shop and field applications, handling high-pressure piping, structural assemblies, and specialty alloy work.
Code-Compliant Welding for Heavy Industry
We specialize in:
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Structural steel welding (AWS D1.1 / D1.3)
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API 650 & API 653 tank welding & repairs
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Pressure vessel & piping welds
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Alloy welding (stainless, aluminum, nickel alloys)
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Heavy-section and multi-pass welds
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Weld overlays, hardfacing & specialty processes
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Field welding with full QA documentation
All welds undergo visual inspection, UT, RT, MT, or customer-specified NDT.
Ensuring Every Weld Meets Industry Standards
Key capabilities include:
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Visual inspections and non-destructive testing (NDT): ultrasonic (UT), magnetic particle (MT), dye penetrant (PT), radiography (RT)
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Weld procedure development, qualification, and verification per AWS/ASME/API standards
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Material traceability and certified Mill Test Reports (MTRs)
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Weld mapping and detailed documentation for client records
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On-site supervision and QA support for field welding projects
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Coordination with engineers, inspectors, and project managers to ensure alignment with specifications
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Process audits and verification of repair, modification, or retrofit welding