12Cr-8Ni-2.9Mo Stainless (var. 2)
metalA precipitation-hardened martensitic stainless steel with ~12% chromium, ~8% nickel, and ~3% molybdenum, strengthened by significant aluminum and cobalt additions (~2.5% and ~8% respectively). This composition positions it as a high-strength variant designed for aerospace and power generation applications where corrosion resistance must be paired with exceptional strength-to-weight performance. The alloy occupies a niche between standard 300-series austenitic stainless steels and specialty superalloys, offering a balance of machinability, weldability, and elevated-temperature capability that makes it suitable for critical components where both mechanical properties and environmental durability are non-negotiable.
jet engine hardwaregas turbine blades and discsaerospace fastenershigh-temperature pressure vesselsmarine corrosion-resistant shaftspower plant steam turbine components
Compliance & Regulations
?ISO 10993?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | — | - | — | — | |
Ultimate Tensile Strength(σUTS) | — | ksi | — | — | |
Yield Strength (0.2% offset)(σy) | — | ksi | — | — |
Verified Unverified Low confidence (<80%) Link to source
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.