8.1Cr-1.9Mo-10.1Ni Low Alloy Steel

metal

An ultra-high-strength low-alloy steel combining significant chromium (8.1%), molybdenum (1.9%), and nickel (10.1%) content to achieve excellent hardenability, fatigue resistance, and corrosion resistance in a martensitic matrix structure. This composition is typical of premium aerospace and defense alloy steels, particularly those specified for highly stressed components requiring both strength and damage tolerance in demanding environments.

aerospace landing gearhigh-strength fastenersturbine rotor shaftssubmarine hullsmilitary ordnance componentshigh-performance automotive crankshafts

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)	16.00	-	—
Ultimate Tensile Strength(σUTS)	185.6	ksi	—
Yield Strength (0.2% offset)(σy)	183.3	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.