POST WELD HEAT TREATMENT

Post-weld heat treatment (PWHT) is a crucial process in welding that enhances the mechanical properties of welded joints. After welding, metal components often experience stress, hardness, and brittleness due to rapid cooling. PWHT involves heating the welded area to a specific temperature, then maintaining that temperature for a designated time before gradually cooling it down. This process helps to relieve residual stresses, reduce the risk of cracking, and improve ductility and toughness. PWHT is particularly important in high-stress applications, such as in pressure vessels, pipelines, and structural components, ensuring long-term durability and performance.
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