18Ni-9Co-2.8Mo-0.8Ti Maraging Steel

metal

18Ni-9Co-2.8Mo-0.8Ti is a precipitation-hardening maraging steel engineered for ultra-high strength with exceptional toughness and ductility. The nickel-cobalt-molybdenum-titanium system produces a martensitic matrix strengthened by intermetallic precipitates formed during low-temperature aging, eliminating the brittleness typically associated with ultra-high-strength steels. This alloy is employed in aerospace structures, pressure vessels, tooling, and sporting equipment where the combination of extreme strength, damage tolerance, and fatigue resistance justifies the material cost; it is preferred over conventional high-strength steels and some titanium alloys when weight savings and fracture toughness must both be optimized.

aerospace structural componentsrocket motor casingshigh-performance tooling (dies, punches)pressure vessels and accumulatorsgolf club heads and sporting equipmentlanding gear and fasteners

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.