Sanitary stainless steel pipes are mainly used in food, beverage, wine, biological engineering and other production equipment and assembly lines.
1. Surface finish: Polish the inner and outer surfaces of the steel pipe to make the surface of the steel pipe bright; it is mainly to prevent the fluid substance in the pipe from forming a wall in the pipe, which is easy to contaminate and cause blockage in the pipe after a long time.
2. Passivation layer: After polishing, the steel pipe needs to be immersed in a passivation pool, and the surface of the steel pipe is oxidized with an acid passivation solution to form a passivation layer to achieve the corrosion resistance of the steel pipe.
3. Oil-free degree: After passivation is completed, oil-free cleaning is performed to remove oil stains on the surface of the steel pipe. After completion, a grease analyzer is required for inspection. Mainly to prevent the oil pollution of the pipe wall itself from polluting the fluid substances in the pipe.
|Category||Seamless Sanitary Grade Pipe; Weilded Sanitary Grade Pipe|
|Grade||304; 304l; 316l|
|processing||Precision rolling; Mechanical polishing; Automatic online welding; Mechanical polishing|
|Delivery Status||Hard or soft polishing|
|Stanard||DB; ADME; ASTM; JIS; EN; DIN; GOST|
|Surface Treatment||Polished 400grit 0.2μ|