14Cr Martensitic Stainless Steel (variant 7) is a chromium-bearing iron alloy strengthened through martensitic transformation, with elevated carbon content and cobalt additions for enhanced hardness and wear resistance. This material is engineered for demanding applications requiring superior strength-to-weight ratio and corrosion resistance in moderately aggressive environments, commonly found in aerospace, energy, and precision tooling industries where high-performance metallurgy justifies the cost. The cobalt and molybdenum additions distinguish this variant as optimized for elevated-temperature service and fatigue-critical applications where conventional 400-series stainless steels prove insufficient.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 17.70 | - | — | ||
Ultimate Tensile Strength(σUTS) | 1.732 | GPa | — | ||
Yield Strength (0.2% offset)(σy) | 1.376 | GPa | — |