When ASME BPVC Is applicable then:
1. The minimum thickness of hardfacing has to be specified in the WPS
The minimum thickness depends on which surface the chemical analysis or hardness test is conducted. You should read the Notes on Fig. QW-462(s)
2. There is no limit to the max thickness that can be used in production
3. The Chemical analysis has to be defined in the WPS. ASME does not impose any ranges/ In ASME it is not mandatory to specify a chemical analysis in the WPS, but if specified it has to be checked. However, the Classification of the filler metal is an essential variable, contrary to the ordinary welding (read QW-404.12)
Στις Τρί, 24 Μαρ 2020 στις 6:33 π.μ., ο/η SURESH <qms.pjgpl@gmail.com> έγραψε:
Dear Experts--Please through your view on below subject1.What will be the qualification range, when a PQR is made by hardfacing weld(ER CoCr-A) on 1.6mm base to weld2. What is the standard reference?3. What is the Fe range allowed?4. If range specified in WPS with limits with nominal chemical is that ok?RegardsSuresh
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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
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