Browse Items (3 total)

Stress relief of compressor station piping welds is specified under widely differing circumstances by different pipeline companies. This project examines the utility of requirements for stress relief by post-weld heat treatment (PWH1], particularly…

Post-weld heat treatment (PWHT) of welded joints is carried out for the following three

reasons:

(1) Improve the fracture toughness of the welded joint

(2) Reduce welding residual stresses

(3) Reduce heat-affected zone (HAZ)…

Presents the results of an analytical study on the necessity for post-weld heat treatment on thick-walled fittings and pipeline girth welds.