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  • Users: winai
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  1. winai

    Preheat to remove moisture before welding.

    Hi, I have some WPS mention a bout minimum preheat temperature: Preheat to remove moisture I,m finding in AWS D1.1 CODE. But cant find it. What is meaning of this moisture need to remove?any idea pls help me to clarify about this” Moisture. Thanks winai
  2. winai

    Unlisted steel qualified by PQR Clause 4. (AWS D1.1)

    Dear, All If unlisted steel qualified by PQR Clause 4. D1.1 ( Single V Butt joint with ceramic backing). Can qualified for? 1, PQR Base metal ( Single Bevel, Double Bevel, Double V with ceramic backing , steel backing)? 2, PQR Base metal ( Single Bevel, Double Bevel...

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