15Ni-15Co-1.9Mo-0.8Ti Maraging Steel

metal

15Ni-15Co-1.9Mo-0.8Ti is a nickel-cobalt maraging steel, a precipitation-hardened iron-based alloy designed to achieve ultra-high strength with reasonable toughness through aging heat treatment rather than carbon hardening. This alloy is used primarily in aerospace and defense applications where extreme strength-to-weight performance is critical, including aircraft landing gear, missile components, and high-pressure vessels; maraging steels like this composition are preferred over conventional high-strength steels because they combine excellent damage tolerance with minimal distortion during heat treatment, making them ideal for large structural components that cannot tolerate significant warping or cracking.

aerospace landing gearmissile and ordnance componentshigh-strength fastenerspressure vessels and housingsprecision toolingmilitary structural applications

Compliance & Regulations

?ITAR?EAR?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)	10.80	-	—
Ultimate Tensile Strength(σUTS)	250.5	ksi	—
Yield Strength (0.2% offset)(σy)	242.1	ksi	—

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Regulatory Screening

Environmental

Export Control

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.