Post Weld Heat Treatment
Reheating the weldment to 1100øF to 1350øF after welding and holding at that temperature for a specified length of time. Heat treating allows additional hydrogen to escape, lowers the residual stresses due to welding, and restores toughness in the heat affected zone.
Related Links
5 Primary Benefits of Post Weld Heat Treatment | Welpedia
Postweld Heat Treatment
Post Weld Heat Treatment (PWHT) | Inspectioneering
Post weld heat treatment
About postweld heat treatment/stress relief heat treatment – TWI
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