0.05C 8.2Cr-1.8Mo-9.8Ni Low Alloy Steel

metal

This is a high-strength, low-alloy (HSLA) steel with substantial nickel and chromium content, designed to achieve superior strength and corrosion resistance through controlled alloying. The composition—particularly the 8.2% chromium, 9.85% nickel, and 1.78% molybdenum with minimal carbon—positions this as a precipitation-hardening or maraging-type steel intended for applications requiring both exceptional hardness and toughness. It is commonly used in aerospace structural components, landing gear, high-performance fasteners, and defense applications where weight savings and resistance to fatigue and stress corrosion cracking are critical; engineers select this alloy over conventional steels when operating temperatures are elevated or corrosive marine/chemical environments demand superior durability alongside high load-bearing capacity.

aerospace structural componentslanding gear and undercarriagehigh-strength fastenersdefense ordnance and armorstress-corrosion resistant shaftshigh-temperature pressure vessels

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.