1. Chemical properties: chemical and electrochemical corrosion resistance is the best in steel, second only to titanium alloys.
2. Physical properties: heat resistance, high temperature resistance, low temperature resistance and even ultra-low temperature resistance.
3. Mechanical properties: According to different types of stainless steel, the mechanical properties are different. Martensitic stainless steel has high strength and hardness. Suitable for corrosion resistant parts that require high strength and high wear resistance, such as turbine shafts, stainless steel cutters, stainless steel bearings, etc., austenitic stainless steels are good plasticity, strength is not too high, but corrosion resistance is the best among stainless steels. Suitable for occasions where corrosion resistance and low mechanical properties are required, such as equipment and equipment of chemical plants, fertilizer plants, sulfuric acid, and hydrochloric acid manufacturers. Of course, it can also be used in submarines and other military industries. Ferritic stainless steels have moderate mechanical properties, low strength but oxidation resistance, and are suitable for various industrial furnace parts.
4. Process performance: Austenitic stainless steel has the best process performance. Because of its good plasticity, it can process all kinds of plates, tubes and other profiles, suitable for pressure processing, while martensitic stainless steel has slightly poorer process performance due to its high hardness.