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  • Users: ERob
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  1. ERob

    UHA-51(c) Thermal Treatment

    A vessel shell is to be fabricated from 316H material and will operate at a temperature of approximately 1200 deg-F. Is the operating temperature of 1200 deg-F considered a "thermal treatment" per UHA-51(c)? If so, then impact testing of the base metal, HAZ and welding procedure qualification...
  2. ERob

    Postfabrication Heat Treatment of Cold-formed Head

    Please help me understand whether post-fabrication heat treatment is required for a cold-formed head fabricated from A240-304L material. I have paraphrased the code parts from the Section VIII, Div. 1 code below: 1) UF-31(a) states that all forgings shall be heat treated (after all foring is...

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