13Cr Martensitic Stainless (var. 12)

metal

13Cr martensitic stainless steel (variant 12) is a chromium-based stainless steel hardened through martensitic transformation, alloyed with molybdenum, cobalt, and nickel to enhance strength and toughness. This variant is engineered for demanding applications requiring high hardness and wear resistance combined with corrosion protection, making it suitable for aerospace components, high-performance valve bodies, and turbomachinery where superior fatigue resistance and thermal stability are critical. The cobalt addition (≈13%) distinguishes this variant as a premium martensitic grade, prioritizing performance over cost-efficiency, with particular value in rotating equipment and critical load-bearing structures exposed to aggressive or elevated-temperature service environments.

turbine blades and rotorsaerospace fasteners and hardwarehigh-pressure valve componentspump shafts and impellersbearing racesmarine propulsion 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)
—
ksi——
Yield Strength (0.2% offset)(σy)
—
ksi——
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.