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  1. just73gray

    ASTM A312 / B31.3 Weld Joint Strength Reduction Factor " W"???

    We are designing our piping to B31.3 - 2008 and have had an issue come up with the Weld Joint Strength Reduction Factor "W". Our piping is 347H with a design temperature of 1150F and is built to ASTM A312. Section 6, of A312, MANUFACTURING - 6.1.3 states that "welded (WLD) pipe shall be made...

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