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  1. copperly

    PWHTing alloy 4130 to P-1 materials

    I am welding 4130 to A106B, over 1/2 " in thickness. 4130 would be considered P-4 as it is > .5% < 2% Cr. Table 331.1.1 calls for a PWHT @1300-1375. I was thinking that I would see some exception to the 1300 due to the carbon steel transformation temperature, but I don't. I know that I don't...
  2. copperly

    PWHTing alloy 4130 to P-1 materials

    metengr, thanks for your reply ! What verbage in B31.3 exempts me from this. I've scrubbed the 331.1.1 table and the associated notes, I seem to have overlooked something ? Thanks for your time !
  3. copperly

    PWHTing alloy 4130 to P-1 materials

    In accordance with ASME B31.3, is a PWHT temperature of 1150 +/- 50, acceptable. you wouldn't want to take the CS to 1300-1375, would you ?
  4. copperly

    Welding kiiled carbon steel piping, wet H2S resistant

    Would the suggested fillers for a GTAW/SMAW procedure be ER70S-6 and E-7018-1 ? Thanks for your suggestions

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