Stainless steel pipes with weld DIN EN ISO 1127

Stainless steel tubes with a diameter of Ø 16" 406mm and a thickness of 3.0mm have many changes in the weld area. Because forming processes do not run stably, the sheet thicknesses do not come together when forming to weld the pipes.

Tubes in different material grades such as 304and 3116L as well as other circumstances and alloying components expand the subject matter in the welds. Insufficient machine technology in pipe manufacturing are further factors that affect the shape and condition of the weld. Modified quality guidelines which are still within the DIN or EU standard are exploited to yield to the cost pressure. The consequences are foreseeable among others in the weld area.