0.05C 8.3Cr-1.8Mo-11.7Ni Low Alloy Steel

metal

This is a precipitation-hardened nickel-chromium-molybdenum low-alloy steel, engineered for high-strength applications requiring excellent fatigue and corrosion resistance. The composition—particularly the 11.7% nickel, 8.3% chromium, and 1.8% molybdenum with aluminum and titanium additions—is characteristic of maraging or age-hardenable steel families, commonly used in aerospace, defense, and high-performance structural applications where weight savings and damage tolerance are critical. Engineers choose this material class over conventional alloy steels when combining ultra-high yield strength with toughness and corrosion resistance in service environments ranging from subsonic to supersonic aerospace structures, landing gear, and fastener applications.

aerospace structural componentslanding gear and actuator bodieshigh-strength fastenersaircraft wing/fuselage detailsdefense ordnance and missile bodiesfatigue-critical mechanical assemblies

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.