0.05C 5.8Cr-1.7Mo-12.4Ni Low Alloy Steel

metal

This is a precipitation-hardened maraging steel—a low-carbon, high-nickel alloy designed to achieve very high strength through age-hardening rather than carbon-based hardening. The composition combines ~6% chromium, ~1.7% molybdenum, and ~12% nickel with small additions of titanium and aluminum to enable precipitation of intermetallic phases, producing an exceptionally strong but still somewhat ductile steel. This alloy family is primarily used in aerospace and defense applications where extreme strength-to-weight ratio and dimensional stability are critical, particularly in landing gear, pressure vessels, and high-performance structural components that operate in demanding thermal and mechanical environments.

aerospace landing gearhigh-strength structural componentspressure vesselsaerospace fastenersdefense applicationstooling and dies for high-volume production

Compliance & Regulations

?ISO 10993?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
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.