What is PWHT and Why It’s Vital for 2 Strong, Durable Welds

what is pwht

PWHT full form is Post Weld Heat Treatment. It is a process of heating a welded joint to a specific temperature and holding it there for a specified time. This is done to relieve residual stresses, improve ductility, and temper the micro structure of the weld. Post Weld Heat Treatment  is a thermal process carried … Read more