16Cr-4Ni Duplex Stainless (var. 4)
metal16Cr-4Ni duplex stainless steel is a lean duplex stainless steel combining a dual-phase microstructure of austenite and ferrite to achieve high strength with moderate corrosion resistance at lower nickel and molybdenum content than standard duplex grades. It is used in moderately corrosive environments where weight savings, cost control, and fabricability are important—such as structural components in chemical processing, desalination plants, and offshore pipelines—and offers a practical middle ground between conventional austenitic stainless steels and higher-alloyed duplex grades for applications that do not demand extreme pitting or stress-corrosion resistance.
chemical processing equipmentdesalination and water treatmentoffshore structural componentspressure vessels and pipingcost-optimized corrosion resistancewelded fabrications
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.