18Ni-7Co-2.9Mo-2.1Ti Maraging Steel

metal

This is a precipitation-hardening maraging steel, a high-strength iron-nickel alloy strengthened by intermetallic phases (primarily Ni₃Mo and related compounds) rather than by carbon content, making it extremely tough and weldable despite its high strength. Used predominantly in aerospace and defense applications—particularly landing gear, missile casings, and structural components in spacecraft—where the combination of exceptional strength, fracture toughness, and low distortion during heat treatment is critical. Engineers select maraging steels when conventional high-strength steels would sacrifice ductility or introduce welding difficulties; this alloy's low carbon content virtually eliminates brittleness and allows field repairs without embrittlement concerns.

aerospace structures and landing gearmissile and rocket casingshigh-strength fastenerstooling and dies for high-impact applicationsprecision aerospace forgingsdefense ordnance and pressure vessels

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Elongation at Break(εf)	—	-	—	—
Ultimate Tensile Strength(σUTS)	—	Pa	—	—
Yield Strength (0.2% offset)(σy)	—	Pa	—	—

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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.