This is a precipitation-hardening nickel-chromium-molybdenum low-alloy steel, engineered for high-strength aerospace and defense applications where combined strength, toughness, and corrosion resistance are critical. The composition—dominated by ~10% nickel and ~5% chromium with molybdenum for strength and aluminum/titanium for precipitation hardening—positions this steel as a workhorse for landing gear, fasteners, and structural components in military and commercial aircraft. Its appeal over martensitic stainless steels or conventional high-strength steels lies in achieving ultra-high strength levels while maintaining fracture toughness and environmental resistance, making it essential where weight savings and reliability cannot be compromised.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 16.00 | % | Measured | ||
Ultimate Tensile Strength(σUTS) | 1.198 | GPa | Measured | ||
Yield Strength (0.2% offset)(σy) | 1.172 | GPa | Measured |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data