In our daily life, we can find tableware and food processing utensils produced with 316L stainless steel belts. These products generally require food-grade materials. In the stainless steel industry, the surface treatment of food-grade steel belts is very important. Because many food processing utensils come into direct contact with food, if the surface of the steel belt is not well treated, it may cause accidental pollution and bring danger to human health.
1. Surface finish and hygiene
The 316L stainless steel belt used in the food field has very high requirements on its surface finish and corrosion resistance. The food processing and catering industry is an industry that uses more stainless steel. The steel belt that meets the food-grade requirements has good surface gloss and no raw material. Signs of rust, its surface is relatively smooth, if the surface roughness is lower, it indicates that its material is more environmentally friendly.
2. Surface roughness
The roughness of the general stainless steel surface is represented by Ra, which indicates the average value of the texture of the material. Among the different grades of stainless steel belts, 316L stainless steel belts are quite a good material choice. According to the test, the Ra roughness of this steel strip is 0.8 microns, and the Ra roughness of high-quality steel strips is only 0.5 microns, and its corrosion resistance is relatively guaranteed, because some corrosive substances are not uniformly grown on the smooth surface. , and the surface smoothness is good, and it is easy to rinse when cleaning.
3. Environmental protection metal certification
In order to ensure the quality of food-grade 316L stainless steel belt and promote food processing and packaging, the material should pass the environmental protection metal certification.
Stainless steel is one of the materials selected for leakage in the food processing and catering industry. When customers choose, they should choose those steel belts with good surface finish, low surface roughness and environmental protection certification.