B31.1 requires PWHT for attachment welds when filler metal has a specified chromium content of more than 3%. Check 132.1.2 in ASME B31.8 - 2018
Στις Κυρ, 16 Σεπ 2018 στις 9:52 π.μ., ο/η Nishanth Km <nishanthkm21@gmail.com> έγραψε:
Dear sir,--For primary support which is directly welding to the pipe required pwht or not?Please adviceRegards,Nishanth km
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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Dr. Georgios Dilintas,
Dipl. Ing. In Aeronautic and Space Engineering
Ph.D in Mechanics of Solids - Computational Mechanics
A.I.S, A.N.I, IRCA Lead Auditor
Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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