11Ni-13Co Maraging Steel

metal

11Ni-13Co maraging steel is an iron-based ultra-high-strength alloy strengthened through precipitation hardening of intermetallic phases rather than carbon content, enabling exceptional strength with retained toughness and weldability. It is widely deployed in aerospace structures (landing gear, fasteners, structural forgings), tooling for high-performance applications (injection mold cores, extrusion dies), and precision automotive components where weight savings and fatigue resistance are critical. Engineers select this alloy when conventional quenched-and-tempered steels prove insufficient, as maraging steels deliver outstanding strength-to-weight ratios, superior fracture toughness, minimal distortion during heat treatment, and the ability to be welded without loss of mechanical properties—advantages especially valuable in weight-constrained and high-reliability environments.

aerospace landing gear and fastenershigh-strength structural forgingsinjection mold toolingextrusion dies and press toolingautomotive performance componentsprecision fasteners and brackets

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