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Effects of Stress Relieving 2.25% Cr 1%Mo pipe

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GGEFAB

GGEFAB

Petroleum
Apr 17, 2003
2
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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