A high-carbon, cobalt-strengthened martensitic stainless steel with significant molybdenum and vanadium additions, designed to achieve very high hardness and strength while maintaining stainless corrosion resistance. This is a specialty tool steel variant optimized for applications requiring exceptional wear resistance and dimensional stability at elevated temperatures, commonly found in precision cutting tools, gauges, and demanding industrial components where both hardness and corrosion resistance are critical. The elevated cobalt content (11.2%) and vanadium contribution distinguish this from standard 16Cr martensitic grades, making it a premium choice for applications where tool life and reliability justify the material cost.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 10.00 | - | — | ||
Ultimate Tensile Strength(σUTS) | 311.8 | ksi | — | ||
Yield Strength (0.2% offset)(σy) | 238.8 | ksi | — |