18Ni-8Co-3.6Mo-0.5Ti Maraging Steel

metal

18Ni-8Co-3.6Mo-0.5Ti is a precipitation-hardening maraging steel engineered for ultra-high strength with excellent toughness and dimensional stability. This alloy is widely deployed in aerospace structures (landing gear, fasteners, critical forgings), tool steels for high-performance dies, and defense applications where weight savings and damage tolerance are critical. Engineers select maraging steels over conventional high-strength alloys when damage-tolerant fracture mechanics, low distortion during heat treatment, and repeatable performance in critical load-bearing roles are essential—making it the reference material for applications where strength-to-weight ratios and reliability cannot be compromised.

aerospace landing gear and structural componentshigh-strength fasteners and boltsprecision tool dies and moldsmissile and defense structurescritical engine mounts and bracketsspace launch vehicle components

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)	6.000	-	—
Ultimate Tensile Strength(σUTS)	1.199	GPa	—
Yield Strength (0.2% offset)(σy)	1.013	GPa	—

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.