5.4Cr-1.8Mo-11.4Ni Low Alloy Steel — Properties & Data | MatWorld

5.4Cr-1.8Mo-11.4Ni Low Alloy Steel

Name: 5.4Cr-1.8Mo-11.4Ni Low Alloy Steel
Brand: MatWorld

metal

This is a precipitation-hardening nickel-chromium-molybdenum low alloy steel, strengthened through martensitic transformation and age-hardening mechanisms. The high nickel content (11.4%) combined with chromium and molybdenum provides exceptional strength-to-weight ratio, corrosion resistance, and toughness at both ambient and cryogenic temperatures. Commonly used in aerospace landing gear, high-strength fasteners, and defense applications where demanding fatigue, impact, and environmental resistance are required; it competes favorably with maraging steels and titanium alloys in cost-sensitive applications requiring both ultra-high strength and damage tolerance.

aerospace landing gearhigh-strength fasteners and boltshelicopter rotor hubsgun barrels and ordnancecryogenic pressure vesselscritical structural 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)	16.00	%	Measured
Ultimate Tensile Strength(σUTS)	196.1	ksi	Measured
Yield Strength (0.2% offset)(σy)	192.1	ksi	Measured

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.