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  1. Johawn

    ASTM A-106 Gr.B vs API 5L Gr.B

    Hi metengr, Noted with many thanks. I inform to our client that their WPS can apply to our project. Best Regards. Johawn.
  2. Johawn

    ASTM A-106 Gr.B vs API 5L Gr.B

    Hi metengr, Thank you for your prompt reply ! Please let me clarify what am I understanding as per your explanation: - As per ASME IX edition 2007, QW-420.2, para. 2: ASME SA-106 Gr.B have P No.1 and P Group No.1 so ASTM A-106 Gr.B would have P No.1 and P Group No.1 & S No.1 and S Group No.1...
  3. Johawn

    ASTM A-106 Gr.B vs API 5L Gr.B

    Hi all, After looked back all our client welding procedures, I found that - Their PQR using API 5L Gr.B (P No.: S No.1; P Group No.: S Group No.1)as Base Metal. - and their WPS using base metal: + P No.: S No.1; P Group No.: S Group No.1; OR + API 5L Gr.B or equivalent; Applied to our...
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