18Ni-13Co-2.1Mo-2.7Ti Maraging Steel

metal

An 18% nickel maraging steel strengthened by precipitation hardening of intermetallic phases (cobalt, molybdenum, and titanium), achieving ultrahigh strength with relatively good toughness compared to conventional high-strength steels. This material is used in aerospace structures, rocket casings, and precision tooling where extreme strength-to-weight ratio and dimensional stability are critical; it is valued over alternatives because it can be solution-treated in thick sections and then aged to full strength without significant distortion, making it ideal for large forged components that demand both strength and machinability.

aerospace forgings and structural componentsrocket motor casings and pressure vesselslanding gear and fastenersprecision die and toolingmilitary ordnance and armor 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)	3.700	-	—
Ultimate Tensile Strength(σUTS)	2.570	GPa	—
Yield Strength (0.2% offset)(σy)	2.501	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.