15Ni-9Co-3.0Mo-0.8Ti Maraging Steel (var. 3)

metal

15Ni-9Co-3.0Mo-0.8Ti maraging steel (variant 3) is an iron-nickel-cobalt precipitation-hardened alloy designed to achieve exceptional strength through aging heat treatment rather than carbon hardening, enabling a combination of high strength with usable toughness and ductility. This grade is employed in aerospace structures, high-performance tooling, and defense applications where weight savings and damage tolerance are critical—notably in missile casings, aircraft landing gear components, and precision injection molds where both extreme strength and resistance to brittle failure are non-negotiable. Engineers select maraging steels over conventional high-strength steels when fatigue resistance, weldability, and dimensional stability during hardening are as important as raw strength, making them the material of choice for safety-critical load paths in demanding environments.

aerospace structures and fastenersmissile and ordnance casingsaircraft landing gearprecision tooling and dieshigh-strength springsracing and motorsports components

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)	—	ksi	—	—
Yield Strength (0.2% offset)(σy)	—	ksi	—	—

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

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.