8Ni-12Co Maraging Steel

metal

8Ni-12Co Maraging steel is a precipitation-hardened iron-nickel-cobalt alloy engineered for extremely high strength with retained toughness, typically used in high-demand aerospace and defense applications where weight savings and damage tolerance are critical. The alloy achieves its strength through aging-induced intermetallic precipitation rather than carbon content, making it amenable to welding and machining before heat treatment—a key advantage over conventional high-strength steels. This material is selected when applications require the combination of ultra-high strength and fracture toughness that conventional martensitic or tool steels cannot reliably deliver, such as landing gear, missile casings, and spacecraft structures.

aerospace landing gearmissile and ordnance bodiesspacecraft structural componentshigh-strength fastenersdie casting dies for automotivetooling and punches

Compliance & Regulations

?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)	14.30	-	—
Ultimate Tensile Strength(σUTS)	254.8	ksi	—
Yield Strength (0.2% offset)(σy)	189.9	ksi	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

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.