18Ni-8Co-2.9Mo-0.8Ti is a precipitation-hardening maraging steel engineered for extreme strength-to-weight performance without relying on carbon hardening. The cobalt, molybdenum, and titanium additions enable age-hardening through intermetallic precipitation, yielding a martensitic steel that maintains toughness and ductility even at ultra-high strength levels. This material is chosen for critical aerospace and defense components, precision tooling, and sporting equipment where lightweight design, damage tolerance, and repeatability cannot be compromised—applications where conventional high-strength steels would be too brittle or require prohibitive thickness.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 22.00 | - | — | ||
Ultimate Tensile Strength(σUTS) | 198.9 | ksi | — | ||
Yield Strength (0.2% offset)(σy) | 168.9 | ksi | — |