16Cr-4Ni Duplex Stainless (var. 2)
metal16Cr-4Ni duplex stainless steel is a two-phase ferritic-austenitic stainless alloy that combines moderate chromium content with cobalt and silicon additions, positioning it as a specialized variant within the duplex family. This composition—notably enriched with ~6.85% cobalt and elevated silicon—suggests engineering for enhanced strength and wear resistance, likely in demanding environments where corrosion resistance and mechanical performance must be balanced. The alloy targets applications requiring superior hardness and fatigue resistance compared to conventional austenitic stainless steels, particularly in moderately corrosive industrial settings where premium cost is justified by performance gains.
industrial valves and pumping equipmentwear-resistant fastenersoffshore subsea componentspower generation equipmentchemical processing vesselshigh-strength structural applications
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | — | - | — | — | |
Ultimate Tensile Strength(σUTS) | — | Pa | — | — | |
Yield Strength (0.2% offset)(σy) | — | Pa | — | — |
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.