15Cr Martensitic Stainless (var. 9)

metal

15Cr martensitic stainless steel is a chromium-hardened iron alloy with cobalt and molybdenum additions, designed to achieve high strength through martensitic hardening while maintaining corrosion resistance typical of stainless steels. This grade is used in demanding applications where both wear resistance and corrosion protection are critical, such as high-performance cutting tools, turbine components, and aerospace fasteners that must withstand aggressive environments. The cobalt addition distinguishes this variant from standard 15Cr martensitic grades, improving high-temperature strength and red hardness—making it preferred over lower-alloy alternatives in applications involving elevated thermal cycling or sustained loads.

aerospace fasteners and bladeshigh-performance cutting toolsturbine engine componentscorrosive environment valve stemsbearing races in harsh serviceindustrial pump shafts

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.