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  1. Lkumbun

    ASTM A860-GRADE WPHY42 Vs A234 GR WPB SCH 80 TO B16.9

    Thanks for the response...It clears the doubt I had. The 4" Pipe has an OD of 4.5"
  2. Lkumbun

    ASTM A860-GRADE WPHY42 Vs A234 GR WPB SCH 80 TO B16.9

    Hi Season greetings. I want to weld a 150 MM X 100 MM CONCENTRIC REDUCER , of "ASME B16.9 , BE , ASTM A860-GRADE WPHY42 , SEAMLESS , S-160 X S-XXS , IMPACT TESTED AT -45 DEG C, CVN: 40J FULL SIZE SPECIMEN" to a 150mm "SCH 80 API 5L GR B SMLS PSL-2" Pipe. Is it okay to weld this fitting as I do...
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