Difference between 410 and 410S stainless steel

The main difference between 410 and 410S stainless steel lies in their chemical composition and physical properties. 410 stainless steel has a high carbon content (0.08%-0.15%), and after heat treatment, its hardness and strength are better, but its brittleness is higher, making it suitable for high wear resistant scenarios such as cutting tools and bearings. 410S stainless steel significantly improves toughness and ductility by reducing carbon content (≤0.08%) and optimizing chromium ratio (11.5%-13.5%), while exhibiting better welding performance and low-temperature stability.

In terms of application fields, 410 stainless steel is commonly used to manufacture components such as valves and pump shafts that require high mechanical strength. The 410S stainless steel, due to its enhanced corrosion resistance and excellent processing performance, is more suitable for environments with high ductility requirements such as automotive exhaust systems and building decorations, especially for low-temperature or complex processing conditions.