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  • Users: iwikr
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  1. iwikr

    Fiber elongation after pipe bending

    Dear sir. Postbending heat treatment is required when the maximum calculated fiber elongation after bending exceeds 50% of the specified basic min. elongation for the applicable material according to para. 332.4.2 of ASME B31.3. Please let me know how to calculate fiber...
  2. iwikr

    PWHT holding temperature

    PWHT holding temperature are specified as below: P No. Applicable Code Temperature(degree C) ------------------------------------------------------------ P No.1 ASME Sect.8-2001 edition Min. 593 P No.1 ASME Sect.8-2004 Min. 650*(changed) P No.1 ASME B31.3-2004 594~649...
  3. iwikr

    Welds of P91 to 50cr-50NI

    Heater tube, A 335 P91(P-NO. 5B) to pipe support of A 560 50Cr-50Ni-Cb has been completed with non-hardened filler metal, ERNiCr-3, and proper preheating according to the applicable Code ASME B31.3 I would like to know for the following question: First, My interpretation is correct that...

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