Martensitic Stainless Steel: Heat‑Treatable High‑Strength Alloy for Wear‑Resistant Applications
Martensitic stainless steel is defined by its ability to be hardened through heat treatment. After quenching and tempering, it achieves high strength, high hardness, and excellent wear resistance while maintaining moderate corrosion resistance. With 11.5–13.5% chromium and relatively high carbon content, it offers good machinability in the annealed state and strong mechanical performance after heat treatment.
Typical grades such as 410 and SUS 410 are widely used in gears, shafts, valves, cutting tools, and pump components. In the annealed condition, tensile strength is around 450 MPa, while heat‑treated material can exceed 700 MPa with hardness reaching HRC 40–50, making it suitable for load‑bearing and wear‑resistant applications.
Martensitic stainless steel is commonly applied in machinery manufacturing, automotive parts, cutting tools, medical instruments, and hardware components. Its high hardness and polishability support precision machining, though its corrosion resistance is lower than austenitic grades. Proper welding procedures and surface treatments are recommended to ensure durability in demanding environments.
alancing strength, hardness, and workability, martensitic stainless steel remains a cost‑effective choice for components operating under high stress, abrasion, or elevated temperatures.
Typical grades such as 410 and SUS 410 are widely used in gears, shafts, valves, cutting tools, and pump components. In the annealed condition, tensile strength is around 450 MPa, while heat‑treated material can exceed 700 MPa with hardness reaching HRC 40–50, making it suitable for load‑bearing and wear‑resistant applications.
Martensitic stainless steel is commonly applied in machinery manufacturing, automotive parts, cutting tools, medical instruments, and hardware components. Its high hardness and polishability support precision machining, though its corrosion resistance is lower than austenitic grades. Proper welding procedures and surface treatments are recommended to ensure durability in demanding environments.
alancing strength, hardness, and workability, martensitic stainless steel remains a cost‑effective choice for components operating under high stress, abrasion, or elevated temperatures.