The stainless steel bolt encountered water condensing in the air. Pollution means they contain a lot of sulfide or carbon monoxide. When they come into contact with water, they form sulfuric acid and hydroxide, which chemically corrode stainless steel bolts. Stainless steel bolts rust because the protective film of stainless steel is destroyed, stainless steel is oxidized and corrosion resistance is weakened, so stainless steel bolts will rust.
Stainless steel bolts with half round head tensile strength of 15? Increases evenly over the temperature range of 80°C. What's more, as the temperature decreases, the bolt's impact toughness of stainless steel slowly decreases without brittleness transition temperature. Therefore, stainless steel can maintain sufficient plasticity and toughness at low temperatures.
Stainless steel usually refers to steel that is resistant to corrosion by air, water, acid, alkali metal salts or other media. Depending on the composition of the alloy, the emphasis is on corrosion resistance and acid resistance. Although certain steels are rust-resistant, they are not necessarily acid-resistant, and acid-resistant steels are usually rust-resistant.
The mechanical properties of stainless steel screw materials, especially the strength requirements; According to the working conditions of the material corrosion resistance requirements; Other aspects such as weight, price, purchase and many other factors must be taken into account according to the requirements of the production technology for the processing properties of the material.
