A cobalt-strengthened martensitic stainless steel with ~17% chromium, molybdenum, and vanadium additions designed for ultra-high-strength applications requiring corrosion resistance. This composition—particularly the cobalt content (~13%) and elevated carbon/nitrogen—suggests a premium tool steel or aerospace-grade alloy engineered to combine hardness and wear resistance with stainless properties, positioning it between conventional martensitic stainless steels (like 440C) and cobalt-bearing superalloys. The material is used in demanding environments where both mechanical strength and corrosion/oxidation resistance are critical, such as cutting tools, aerospace fasteners, and high-performance bearings, offering superior performance compared to standard martensitic grades in high-temperature or chemically aggressive settings.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 11.50 | - | — | ||
Ultimate Tensile Strength(σUTS) | 2.012 | GPa | — | ||
Yield Strength (0.2% offset)(σy) | 1.313 | GPa | — |