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  1. Ibahaa

    PWHT for dissimilar weld joint 9Cr with 310 austenitic SS

    Thanks for your responce Finally the correct action to weld using inconil electrode followed by PWHT. But what is your idea about the decrease of Cr percentage in the SS after PWHT.
  2. Ibahaa

    PWHT for dissimilar weld joint 9Cr with 310 austenitic SS

    thank you metengr,unfortunately the weld joint was a fillet weld which make it is hard to perform such buttering
  3. Ibahaa

    PWHT for dissimilar weld joint 9Cr with 310 austenitic SS

    hello all, I meet a case with dissimilar weld joint 9Cr with 310 austenitic SS I found two approved WPS as follow: • WPS no.1 filler metal is NiCr-3 with no PWHT (which mean the residual stress in the 9cr will not be eliminated). • WPS no.2 filler metal is NiCr-3 but PWHT is required (which...

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