Manufacturing process of stainless steel welded pipes includes the following steps:
1. Material preparation: First, choose the appropriate stainless steel coil plate
2. Welding: For straight seam pipes, long welds are usually used. Spiral seam pipes usually use spiral welding technology.
3. Weld seam treatment: grinding or polishing after welding
4. Cold drawing or cold drawing: improve its size and surface finish through cold drawing or cold drawing process.
5. Heat treatment: improve its physical and mechanical properties.
6. Cutting and Correction: Make corrections to ensure accurate dimensions.
7. Inspection and testing: After production, stainless steel pipes need to undergo various inspections and tests to include outer diameter, wall thickness, chemical composition, physical properties, etc.
