13Cr Martensitic Stainless (var. 20)

metal

13Cr Martensitic Stainless Steel (variant 20) is a chromium-based martensitic stainless steel with elevated carbon content and molybdenum additions, designed for high-strength corrosion-resistant applications. This material is primarily used in aerospace, power generation, and oil & gas industries where components must withstand both corrosive environments and significant mechanical loads—such as turbine blades, compressor components, and downhole tools. The martensitic structure and alloying strategy (chromium for corrosion resistance, molybdenum for strength and pitting resistance, nickel for toughness) make it a preferred choice over softer austenitic grades when hardness, fatigue resistance, and dimensional stability are critical, though it trades some ductility and weldability for superior strength.

turbine blades and rotorscompressor componentsdownhole oil & gas toolspump shafts and impellershigh-strength fastenersaerospace landing gear

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