5.4Cr-1.8Mo-11.4Ni Low Alloy Steel
metalThis 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
| 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.