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  1. Jason123456789

    Wrong PWHT Procedure Applied?

    I have a carbon steel valve with flanges welded one and the wrong heat treat procedure applied to it. The heat treat procedure used holds the temperature at 1550-1650 F for 45 minutes then removed and quenched in oil, until cool. The parts are then tempered in 1000 - 1200 f range for 2 hours to...
  2. Jason123456789

    WRONG PWHT APPLIED TO VALVE?

    I have a carbon steel valve with flanges welded one and the wrong heat treat procedure applied to it. The heat treat procedure used holds the temperature at 1550-1650 F for 45 minutes then removed and quenched in oil, until cool. The parts are then tempered in 1000 - 1200 f range for 2 hours to...

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