The large diameter stainless steel pipe is different from the ordinary welded pipe welding process. Large diameter stainless steel pipes are made by bending and welding wide steel plates. Stainless Steel large diameter pipes are also used in a wide variety of structural applications, such as industrial and residential construction. The most popular process for large diameter stainless steel pipe uses a longitudinal seam weld. Pipe covers a very large part of any process plant. If you look at the Oil Exploration platform, Refinery and Petrochemical complex one thing that catches the attention is a complex network of piping. Large diameter stainless steel pipes are generally manufactured based on standardized sizes.