16Cr Martensitic Stainless (var. 9)

metal

A high-carbon, cobalt-strengthened martensitic stainless steel with elevated vanadium and molybdenum alloying, designed to achieve very high hardness and strength through precipitation and secondary hardening mechanisms. This steel is used in demanding wear and fatigue-resistant applications where corrosion resistance must be balanced against extreme mechanical loading, such as bearing races, turbine components, and tooling that operates in mildly corrosive or high-temperature environments. The cobalt addition (12.8%) is particularly significant, pushing this variant toward the properties and applications more typical of premium tool steels and aerospace-grade martensitic stainless alloys, making it attractive where conventional 13-17% Cr martensitic stainless steels fall short in strength or wear resistance.

bearing races and rolling-element bearingsturbine rotor bladesprecision tooling and gaugeshigh-strength fastenersaerospace structural componentswear-resistant pump/compressor parts

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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Pa——
Yield Strength (0.2% offset)(σy)
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Pa——
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.