Food grade stainless steel refers to the stainless steel material in line with the national provisions of GB9684-2011(GB9684 stainless steel products) (2017/4/19 invalid) replaced by GB 4806.9-2016 national standard for food safety food contact with metal materials and products).
Specific characteristics, its requirements are high quality stainless steel, acid and alkali tolerance is better, heat resistance. In addition, the content of lead, cadmium and other harmful elements in the material is required to be lower than the mandatory standard to prevent the harm caused by long-term contact with food or human body. 304 stainless steel because of its good corrosion resistance, heat resistance and processability is a good range of applications of stainless steel (mainly used for contact parts or food utensils).
In addition, the mark of 304 stainless steel should be distinguished, because according to the mark/origin/according to the different standards, the specific material composition and physical properties are changed. X5CrNi18-10-- international standard (stainless steel grade comparison table in the world)304/S30400-- American standard (ASTM standard ASTM A312 stainless steel pipe Chinese version)SUS304-- Japanese standard (Japanese steel grade standard JISG3459 stainless steel pipe)06Cr19Ni10-- national standard (GB/T Grades and chemical composition of stainless and heat resistant steels).
The commonly used name of 304 stainless steel in the domestic steel market is 18/8 stainless steel (corresponding to 18%Cr8%Ni content).
