When do you need post weld heat treatment?

  • When do you need post weld heat treatment?

    Posted by arsal on 12/10/2021 at 1:13 pm

    The need for PWHT is mostly due to the residual stresses and micro-structural changes that occur after welding has been completed. During the welding process, a high temperature gradient is experienced between the weld metal and the parent material. As the weld cools, residual stress is formed.

    arsal replied 9 months, 4 weeks ago 1 Member · 0 Replies
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