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Stainless steel standard parts
2025-12-08
Stainless steel standard parts are standardized fastening components made of stainless steel. Their foreign name is "Stainless steel standard parts". The main components include iron, chromium (not less than 10.5%), nickel, etc. They achieve anti-corrosion function by forming an oxide chromium protective film on the surface. They cover 12 types of parts such as bolts, nuts, and washers. As national standards screws, their specifications, sizes, and tolerance ranges all comply with national standards requirements. The production process must follow the current valid standards. The material is divided into three types: austenitic stainless steel (containing 18% chromium and 8%-12% nickel), martensitic stainless steel, and ferritic stainless steel. The performance grades include 60, 70, 80, etc.
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