0.05C 8.3Cr-1.8Mo-11.7Ni Low Alloy Steel (var. 2)

metal

A precipitation-hardening martensitic stainless steel with ~8.3% chromium, ~11.7% nickel, and ~1.8% molybdenum, designed to achieve high strength through controlled aging. This composition sits in the low-carbon, high-nickel regime typical of 300M-class or maraging-derivative steels, offering a balance of corrosion resistance and strength without requiring extreme alloy loadings. Common applications include aerospace fasteners, landing gear components, and high-strength structural parts where both fatigue resistance and modest corrosion environments are concerns; it is chosen over simpler carbon steels when weight savings and over-simple stainless grades when higher strength and fracture toughness are non-negotiable.

aerospace fasteners and structural componentslanding gear and undercarriagehigh-strength bolts and fastenerspressure vessels and housingsfatigue-critical structural partsmarine and offshore hardware

Compliance & Regulations

?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)	15.00	-	—
Ultimate Tensile Strength(σUTS)	1.466	GPa	—
Yield Strength (0.2% offset)(σy)	1.415	GPa	—

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.