0.52C 9.9Cr-1.2Mo-0.6V-3.5Ni Low Alloy Steel
metalA high-strength martensitic stainless steel combining moderate carbon content (0.52%) with substantial chromium (9.9%), nickel (3.5%), and molybdenum (1.2%) alloying to achieve excellent corrosion resistance alongside high hardness and wear resistance. This composition—notable for its cobalt content (~16%)—is typically used in demanding aerospace, tooling, and precision bearing applications where both strength and corrosion performance must be maintained at elevated temperatures. The balance of elements enables this steel to be hardened to very high strength levels while retaining toughness and dimensional stability, making it a preferred choice for components requiring both hardness and environmental durability.
aerospace landing gear and fastenersprecision ball bearings and raceshigh-speed cutting tools and diesturbine engine componentschemical/oil-field downhole toolscorrosion-resistant valve stems and stems
Compliance & Regulations
?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
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.