15Ni-15Co-3.6Mo-0.8Ti Maraging Steel

metal

15Ni-15Co-3.6Mo-0.8Ti is a nickel-cobalt maraging steel, a precipitation-hardened iron-based superalloy designed to achieve ultrahigh strength through controlled aging rather than carbon content. Maraging steels are used in aerospace, defense, and tooling applications where exceptional strength-to-weight ratios and fracture toughness are critical—particularly in rocket motor cases, landing gear, and high-performance dies. This composition is notable for combining cobalt and molybdenum hardening elements with minimal carbon, enabling excellent damage tolerance and weldability compared to conventional high-strength steels, making it the preferred choice for structures that must absorb impact while maintaining dimensional stability under extreme loads.

Aerospace structures and landing gearRocket motor casingsHigh-performance tooling and diesDefense applicationsFracture-critical fastenersPrecision mechanical 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)	10.30	-	—
Ultimate Tensile Strength(σUTS)	1.752	GPa	—
Yield Strength (0.2% offset)(σy)	1.603	GPa	—

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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.