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  1. KSOUCY

    Temp Ramp on PWHT Excessive?

    We've performed a PWHT cycle on a vessel (P1 material, 3/8" THK, 20" OD, 30ft long). The temp ramp exceeded the Code specified allowable of 400deg F/hr (max rate seen was 575 F/hr for ~15min, while the avg rate from 800F to 1150F was 300 F/hr). At no point did the other parameters of the PWHT...

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