Post Weld Heat Treatment Service in Delhi NCR

ITE Noida is a Metal Testing Service Provider in India. We provide various testing and treatment services for metals. Post Weld Heat Treatment (PWHT) also known as Welding Stress Relieving. This is a thermal process applied to welded components to improve their mechanical properties and reduce residual stresses introduced during welding. It’s critical in industries such as pressure vessel manufacturing, pipeline construction, and structural steel fabrication. This Welding Stress Relieving Service allows the material to regain a more balanced and relaxed state, minimizing the risk of distortion, cracking, and premature failure. By enhancing the mechanical properties and ensuring the long-term durability of the welded structure, post-weld heat treatment stands as an important step, particularly in industries where safety, reliability, and precision are paramount. 

What is PWHT?

Post Weld Heat Treatment (PWHT) involves heating the welded component to a specific temperature below the material’s transformation temperature (usually 550–700°C for carbon steels), holding it at that temperature for a predetermined time, and then cooling it at a controlled rate.