16Cr Martensitic Stainless (var. 5)

metal

16Cr Martensitic Stainless Steel (variant 5) is a precipitation-hardened martensitic stainless steel strengthened by cobalt, molybdenum, vanadium, and nitrogen additions, designed to achieve very high strength while maintaining corrosion resistance typical of chromium stainless steels. This material variant is employed in demanding aerospace, defense, and high-performance industrial applications where extreme strength-to-weight ratios and corrosion resistance must be balanced—such as landing gear components, turbine engine casings, and hydraulic systems. The addition of cobalt and vanadium (compared to standard 13Cr martensitic grades) enables this variant to deliver superior strength and fatigue resistance, making it preferable to lower-strength stainless or carbon steel alternatives when component weight and durability are critical concerns.

aerospace landing gearturbine engine casingshydraulic actuatorsdefense ordnancehigh-strength fastenerspressure vessels

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Elongation at Break(εf)
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Ultimate Tensile Strength(σUTS)
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Yield Strength (0.2% offset)(σy)
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Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

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.