0.05C 8.5Cr-1.9Mo-9.8Ni Low Alloy Steel

metal

This is a precipitation-hardening martensitic stainless steel with high chromium (8.5%), nickel (9.8%), and molybdenum (1.9%) content, designed to achieve high strength through age-hardening heat treatment while maintaining corrosion resistance and toughness. It is primarily used in aerospace and defense applications requiring combination of high strength, fatigue resistance, and resistance to stress-corrosion cracking in moderately aggressive environments. The high nickel and molybdenum content distinguish this alloy from conventional martensitic stainless steels, enabling better fracture toughness and environmental resistance at elevated strength levels compared to lower-alloy grades.

aerospace landing gear and fastenersturbine engine componentshigh-strength structural fastenerspressure vessels and ordnancemarine propulsion shaftshigh-strength corrosion-resistant forgings

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)	19.00	-	—
Ultimate Tensile Strength(σUTS)	1.055	GPa	—
Yield Strength (0.2% offset)(σy)	1.037	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.