316L is a molybdenum-containing austenitic stainless steel, which is more resistant to pitting and crevice corrosion than conventional austenitic stainless steels such as 304. It is widely used in petrochemical, offshore engineering, environmental protection equipment, pressure vessels, chemical equipment, food machinery, construction engineering and other industrial fields . Due to its low carbon content, no heat treatment is required after welding. Common names in the market are 316L, SUS316L, 00Cr17Ni14Mo2, 022Cr17Ni12Mo2, etc., of which 316L means ASTM standard production, SUS316L means JIS standard production, the main origins are Taiyuan Iron and Steel, Zhangpu, Jiugang.
304 belongs to 18Cr-8Ni type austenitic stainless steel, which is a common material in stainless steel. Its density is 7.93g/cm3. Equipment, pressure vessels, chemical equipment, food machinery, construction engineering and other industrial fields. Common names in the market are 304, SUS304, 0Cr18Ni9, 06Cr19Ni10, etc., of which 304 means ASTM standard production, SUS304 means JIS standard production, 0Cr18Ni9 and 06Cr19Ni10 means GB standard production. The main origins are Taigang, Zhangpu, Jiugang, Tianguan, Baoxin, Yongjin, Hongwang, and the Far East.