0.05C 5.4Cr-1.8Mo-11.7Ni Low Alloy Steel
metalThis is a precipitation-hardening nickel-chromium-molybdenum low-alloy steel, strengthened by aluminum and titanium additions that form fine dispersed phases during heat treatment. It is primarily used in aerospace fasteners, landing gear components, and high-strength structural applications where cryogenic toughness and corrosion resistance must be balanced with ultra-high strength. Engineers select this alloy over conventional martensitic steels when applications require superior fracture toughness at low temperatures combined with resistance to stress-corrosion cracking in marine or chemical environments.
aerospace fasteners and hardwareaircraft landing gearsubmarine hulls and pressure vesselshigh-strength structural forgingscryogenic service componentsstress-corrosion cracking resistance
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.