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LOCAL PWHT


Services Descripiton :

Local Post Weld Heat Treatment (PWHT) is usually performed for tempering and relaxation of residual stresses. Circumferential weld seams can be post weld heat treated by heating a band around the weld. Many factors have an influence on PWHT procedures and the heated width is the most important parameter controlling the effectiveness of local PWHT. However,the determination rules of this parameter are very different in the different codes.

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