This is a low-alloy steel with exceptionally high nickel (16.8%) and significant vanadium (2.2%) and titanium (2.36%) additions, combined with molybdenum strengthening—a composition that suggests development for ultra-high-strength structural applications requiring both strength and toughness. The material sits in the family of maraging and precipitation-hardening steels, designed for applications where conventional alloys reach performance limits. This type of alloy is typically found in aerospace landing gear, pressure vessels, and military ordnance where designers need to minimize weight while maintaining damage tolerance and fatigue resistance; engineers would select it over standard structural steel or conventional stainless grades when weight savings and extreme strength justify the material cost and processing complexity.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 10.00 | - | — | ||
Ultimate Tensile Strength(σUTS) | 302.9 | ksi | — | ||
Yield Strength (0.2% offset)(σy) | 289.9 | ksi | — |