13Cr-8Ni Austenitic Stainless

metal

13Cr-8Ni is a precipitation-hardened martensitic stainless steel that combines chromium for corrosion resistance with nickel, molybdenum, and aluminum to enable age-hardening strengthening. This material is engineered for high-strength applications requiring both corrosion resistance and elevated hardness, positioned between conventional martensitic stainless steels (like 17-4 PH) and austenitic grades; the aluminum content enables precipitation hardening without sacrificing toughness as severely as carbon-heavy martensitic grades. It is widely used in aerospace fasteners, landing gear components, pump shafts, and oil & gas valves where designers need corrosion resistance combined with strength in moderately thick sections, making it a preferred choice when standard martensitic stainless steels lack toughness or when full austenitic stainless steels offer unnecessary softness.

aerospace fasteners and hardwarelanding gear componentsoil & gas downhole toolspump shafts and impellerscorrosion-resistant structural fastenersmarine valve bodies

Compliance & Regulations

?ISO 10993?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Elongation at Break(εf)	—	-	—	—
Ultimate Tensile Strength(σUTS)	—	ksi	—	—
Yield Strength (0.2% offset)(σy)	—	ksi	—	—

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Regulatory Screening

Environmental

Safety & Biocompatibility

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.