Stainless steel round bar is a cylindrical stainless steel product, widely used in automotive parts, aviation, aerospace hardware tools, chemical industry and other industries. It has good corrosion resistance, heat resistance, low temperature strength and mechanical properties, good stamping, bending and other thermal workability, no heat treatment hardening phenomenon. The common materials are 301, 304, 303, 316, 316L, 304L, 321, 2520, 201, 202, etc. Round steel has three kinds: hot rolling, forging and cold drawing.