14Ni-15Co-1.9Mo Maraging Steel

metal

14Ni-15Co-1.9Mo maraging steel is a precipitation-hardened iron-nickel alloy engineered for ultra-high strength without the brittleness typical of conventional hardened steels. The high nickel and cobalt content, combined with controlled molybdenum and titanium additions, enables age-hardening to exceptional strength levels while maintaining useful ductility and toughness—making this alloy a preferred choice where weight savings and reliability cannot be compromised. Applications include aerospace structures, defense systems, tooling for high-pressure forming, and critical aerospace fasteners, where the combination of damage tolerance and exceptional strength-to-weight ratio justifies the premium material cost.

aerospace structures and fuselage componentsrocket casings and pressure vesselsdefense ordnance and missile bodieshigh-strength fasteners and landing gearprecision tool steels for forging and die-casting diesnuclear reactor internals

Compliance & Regulations

?ISO 10993?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property OverviewNormalized to typical max values

Property	Value	Unit	Conditions
Elongation at Break(εf)	15.80	-	—
Ultimate Tensile Strength(σUTS)	193.1	ksi	—
Yield Strength (0.2% offset)(σy)	183.8	ksi	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Safety & Biocompatibility

Quality & Standards

Industry-Specific

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.