14Ni-15Co Maraging Steel

metal

14Ni-15Co Maraging Steel is an iron-based martensitic alloy strengthened by precipitation of intermetallic phases during age-hardening, combining high strength with respectable toughness and ductility at room temperature. Used primarily in aerospace, defense, and precision tooling where weight-critical applications demand ultra-high strength without brittleness, it is favored over conventional high-strength steels and some titanium alloys because it offers superior machinability in the solution-annealed state, excellent weldability, and predictable hardening through controlled heat treatment. Its high cobalt and nickel content makes it more expensive than standard tool steels, but the combination of strength, damage tolerance, and dimensional stability under thermal cycling justifies adoption in demanding environments.

aerospace structural fastenersmissile casings and rocket componentsprecision stamping dieslanding gear componentshigh-strength tooling and mandrelsshock-resistant mechanical seals

Compliance & Regulations

?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

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.