15Cr martensitic stainless steel is an iron-based alloy hardened through heat treatment, combining chromium for corrosion resistance with carbon and molybdenum for strength and wear resistance. It is used in demanding applications requiring a balance of hardness, toughness, and corrosion resistance—particularly in aerospace components, turbine blades, and precision tooling where both environmental durability and mechanical performance are critical. Engineers select this alloy when austenitic stainless steels lack sufficient strength or when tool steels need improved corrosion resistance in moderately corrosive service environments.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 13.80 | - | — | ||
Ultimate Tensile Strength(σUTS) | 267.1 | ksi | — | ||
Yield Strength (0.2% offset)(σy) | 197 | ksi | — |