13Cr Martensitic Stainless (var. 9)

metal

A high-carbon martensitic stainless steel (≈13% Cr) heavily alloyed with cobalt (14.2%), molybdenum, and elevated carbon content, designed to achieve exceptional hardness and wear resistance through martensitic transformation and precipitation strengthening. This variant is employed in demanding applications requiring extreme hardness combined with corrosion resistance—particularly in tooling, bearing races, and high-stress valve components where wear life and resistance to aggressive fluids are critical. The cobalt addition and carbon level distinguish this from conventional 13Cr stainless grades, pushing performance toward tool steel territory while maintaining the corrosion resistance envelope of stainless alloys.

bearing races and rolling elementsprecision cutting toolshigh-pressure valve seats and stemsaerospace fastener applicationswear-resistant industrial toolingcorrosive fluid handling systems

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.