The chemical composition, mechanical properties and other related requirements of SUS303 stainless steel are specified in detail.
SUS303 stainless steel is an austenitic type stainless steel, which is widely used in various fields because of its good corrosion resistance and processing properties. In order to ensure the stability of its performance and quality, there are detailed regulations on the chemical composition, mechanical properties and other related requirements of SUS303 stainless steel.
1. Chemical composition.
According to the standard, the chemical composition of SUS303 stainless steel must meet the following requirements:
c(carbon) 015%, Si (silicon) 100%, mn (manganese) 200%, p(phosphorus) 020%, s(sulfur) 010%, CR (chromium) 1800-20.00%, Ni (nickel) 800-10.50%。
In addition to the above main elements, SUS303 stainless steel also contains a certain amount of MO (molybdenum), Cu (copper) and other elements, which can further improve the corrosion resistance and mechanical properties of stainless steel.
2. Mechanical properties.
For the mechanical properties of SUS303 stainless steel, the standard also specifies the corresponding requirements:
1.Tensile strength: 520MPa
2.Yield point: 210MPa
3.Elongation after break: 40%.
4.Bending angle: 180°
5.Hardness: 201HBW
The above mechanical performance requirements ensure that SUS303 stainless steel has good stability and reliability during use, and can withstand a variety of complex working environments.
3. Other relevant requirements.
In addition to chemical composition and mechanical properties, there are several other relevant requirements for SUS303 stainless steel:
1.Corrosion resistance: SUS303 stainless steel has good corrosion resistance and can be used for a long time in various environments. In order to guarantee its corrosion resistance, regular care and maintenance are required.
2.Processing performance: SUS303 stainless steel has excellent processing performance, which can be processed by various processing methods such as cutting, welding, turning and milling, etc., which is convenient for users to process according to their needs.