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  1. GGEFAB

    Effects of Stress Relief of 2.25%Cr 1%Mo material

    What effect does increasing the cooldown period have on the hardness of the HAZ after welding and then stress relieving at 1200F for 1.5 hours.
  2. GGEFAB

    Effects of Stress Relieving 2.25% Cr 1%Mo pipe

    What effect will stress relieving 2.25%Cr 1%Mo material at 1200F for 1.5 hours have on hardness in the HAZ after welding if we extend the cooldown period. Will it increase the hardness or decrease the hardness.

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