The Coexistence of Corrosion Resistance and High Strength in SUS 410 Stainless Steel Plate

SUS 410 stainless steel plate, defined under JIS G4304, is a martensitic stainless steel that uniquely combines corrosion resistance with high mechanical strength. This balance makes it a versatile material for industries where both durability and environmental resistance are required.

The chromium content of SUS 410 stainless steel plate, typically 11.5–13.5%, provides a protective passive layer that shields the steel from oxidation and mild corrosive environments. While its corrosion resistance is not as high as that of austenitic grades like SUS 304, it performs well in conditions such as fresh water, steam, and mild chemicals, where cost-effectiveness and strength are equally important.

What sets SUS 410 stainless steel plate apart is its ability to achieve high hardness and tensile strength through heat treatment. After quenching and tempering, the steel can reach a hardness of HRC 35–45, making it highly resistant to wear and mechanical stress. This dual property allows it to serve demanding applications, such as pump shafts, turbine blades, fasteners, and cutlery, where both strength and resistance to corrosion are necessary.

Moreover, its adaptability gives manufacturers the freedom to balance machinability in the annealed state with superior performance in the hardened state. This flexibility enhances its value across multiple sectors, from power generation to food processing equipment.

In conclusion, SUS 410 stainless steel plate demonstrates how corrosion resistance and high strength can coexist within a single material, providing industries with a reliable and cost-efficient solution.