Stainless Steel Seamless Pipe is divided into hot rolling, hot extrusion, and cold drawing (rolling) stainless steel pipes according to the rolling method.

According to the metallographic structure of stainless steel, it can be divided into semi-ferritic and semi-martensitic stainless steel seamless pipes, martensitic stainless steel seamless pipes, austenitic stainless steel seamless pipes, austenitic-ferritic iron stainless steel seamless pipes, etc.

According to the provisions of GB14975-2002 "Stainless Steel Seamless Steel Tubes", steel pipes usually have a length (indefinite length) of hot-rolled steel pipes of 1.5-10m, and hot-extruded steel pipes are equal to and greater than 1m. For cold-drawn (rolled) steel pipes with a wall thickness of 0.5-1.0mm, 1.0-7m; for those with a wall thickness greater than 1.0mm, 1.5-8m.

There are 45 kinds of hot-rolled (hot-extruded) steel pipes with a diameter of 54-480mm; a total of 36 kids with a wall thickness of 4.5-45mm. There are 65 kinds of cold-drawn (rolled) steel pipes with a diameter of 6～200mm, and 39 kids with a wall thickness of 0.5～21mm.

Therefore, the quality of stainless steel seamless pipe is still regulated. Huzhou Nanxun Yintuo Special Material Technology Co., Ltd. strictly produces products by the regulations, so the quality of the products must be guaranteed.