The parameter description of stainless steel sanitary grade steel pipes involves multiple aspects, including size specifications, materials, surface treatment, testing standards, etc.
In terms of size specifications, stainless steel sanitary grade steel pipes have a wide range of outer diameters and wall thicknesses to meet the needs of different applications. For example, the outer diameter can range from 8mm to 168mm, and the wall thickness can range from 0.8mm to 8mm. Specific size specifications can be customized according to standards such as ASTM A270 and DIN 11850.
In terms of material, stainless steel sanitary grade steel pipes mainly use 304 stainless steel, which is a universal stainless steel with good corrosion resistance and adaptability. In addition, there are other materials such as 304L, 321, 316L, etc., and the selection of these materials depends on the specific application environment and corrosion resistance requirements.
In terms of surface treatment, stainless steel sanitary grade steel pipes require strict surface treatment to ensure their smoothness and cleanliness. This includes polishing the inner and outer surfaces to achieve a mirror effect and prevent fluid substances from forming wall hanging inside the pipe. In addition, after polishing, the steel pipe will undergo passivation treatment to form a passivation layer, in order to improve the corrosion resistance of the steel pipe. Finally, perform oil free cleaning to remove oil stains from the surface of the steel pipe and ensure the purity of the fluid inside the pipe.
In terms of testing standards, stainless steel sanitary grade steel pipes need to comply with relevant national and industry standards, such as GB/T14975, GB/T14976, etc. These standards ensure the quality and safety of products, meeting the hygiene requirements of industries such as food and medicine.
