16Cr-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.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 16.00 | - | — | ||
Ultimate Tensile Strength(σUTS) | 185.9 | ksi | — | ||
Yield Strength (0.2% offset)(σy) | 174.9 | ksi | — |