18Ni-12Co-2.1Mo-2.3Ti Maraging Steel

metal

18Ni-12Co-2.1Mo-2.3Ti maraging steel is a precipitation-hardened iron-nickel alloy engineered to achieve ultrahigh strength through a low-temperature aging heat treatment rather than carbon-based hardening. This material is used in aerospace, defense, and precision tooling applications where exceptional strength-to-weight ratio and dimensional stability are critical, particularly in landing gear, missile components, mold inserts, and high-performance fasteners. Engineers select maraging steels over conventional high-strength steels when weight reduction is essential, when toughness must be maintained at extreme strength levels, or when superior corrosion resistance and weldability are needed alongside high performance.

aerospace landing gearmissile casings and warheadsinjection mold toolinghigh-strength fastenersprecision structural componentsspace launch structures

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)	8.300	-	—
Ultimate Tensile Strength(σUTS)	2.469	GPa	—
Yield Strength (0.2% offset)(σy)	2.402	GPa	—

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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.