0.05C 8.6Cr-1.8Mo-9.8Ni Low Alloy Steel

metal

This is a high-nickel, chromium-molybdenum low-alloy steel designed for demanding structural and fastening applications requiring a combination of strength and toughness at elevated or variable temperatures. The composition—approximately 9.8% Ni, 8.6% Cr, and 1.8% Mo with minimal carbon (0.05%)—places it in the family of aerospace-grade and power-generation steels, where it is used in critical components that must resist fatigue, corrosion, and thermal cycling. Its nickel and chromium content provides excellent notch toughness and corrosion resistance, while the molybdenum enhances high-temperature strength; this alloy is notable for maintaining reliable performance in applications where conventional carbon or low-alloy steels would fail under combined mechanical and environmental stresses.

aerospace fasteners and structural componentsturbine rotors and casingsoil and gas downhole toolspressure vessels and reactorslanding gear and undercarriagehigh-strength bolts and studs

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.