This is a high-carbon, high-chromium low-alloy steel with significant cobalt and nickel additions, designed for demanding applications requiring exceptional hardness and wear resistance combined with toughness. The composition—particularly the 0.70% carbon, 9.7% chromium, and 12.3% cobalt—places this steel in the tool steel or super-hard alloy family, typical of specialty steels used where extreme service conditions demand both edge retention and fracture resistance. Such alloys are employed in cutting tools, dies, and wear-critical components in aerospace, automotive, and manufacturing sectors where conventional alloys would fail; the cobalt addition is especially characteristic of premium cutting tool steels that maintain hardness at elevated temperatures.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 10.00 | - | — | ||
Ultimate Tensile Strength(σUTS) | 244.8 | ksi | — | ||
Yield Strength (0.2% offset)(σy) | 204.9 | ksi | — |