0.05C 5.1Cr-1.8Mo-11.7Ni Low Alloy Steel

metal

This is a precipitation-hardening low-alloy steel combining modest carbon content with significant chromium, molybdenum, and nickel additions, plus aluminum and titanium for age-hardening response. The composition targets high strength with retained toughness, typical of maraging-steel or custom aerospace/defense alloy families. Applications span landing gear, structural fasteners, turbine components, and other critical aerospace and power-generation systems where high strength-to-weight ratio and fatigue resistance are essential; the nickel-chromium-molybdenum core provides corrosion and oxidation resistance alongside strength, making it preferable to lower-alloy alternatives in harsh or elevated-temperature service environments.

aerospace landing geargas turbine discs and shaftshigh-strength fastenersdefense structural componentsfatigue-critical forgingselevated-temperature service

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.