After a pipe weld, you may need to engage in a post-weld heat-treating service known as pipe weld stress relief. The weld is heated to a specific temperature, kept at that temperature for a period of time and is then cooled. However, you might wonder why this is necessary.
Why Welded Pipes Become Stressed
Stress relief reduces distortion and regains dimensional tolerance. The distortion occurs when the molten metal weld cools and contracts in a manner that is different from the base metal that is around it.
