This is a high-carbon, high-chromium tool steel with cobalt strengthening and nickel toughening, designed for extreme hardness and wear resistance in demanding cutting and forming applications. It combines exceptional hardness from its 1.11% carbon and 9.6% chromium content with cobalt addition (11.7%) for heat resistance and nickel (2.7%) for improved fracture toughness—making it suitable for high-speed machining, die-casting dies, and cold-forming tools where thermal cycling and mechanical shock are concerns. Compared to conventional tool steels, the cobalt addition allows this steel to maintain hardness at elevated temperatures, while the nickel addition reduces brittleness, making it a preferred choice for applications requiring both edge retention and resistance to thermal fatigue.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 16.00 | - | — | ||
Ultimate Tensile Strength(σUTS) | 1.940 | GPa | — | ||
Yield Strength (0.2% offset)(σy) | 1.564 | GPa | — |