Duplex SS 2205
VerifiedmetalDuplex stainless steel 2205 is a two-phase ferritic-austenitic stainless steel combining the corrosion resistance of austenitic grades with the strength and stress-corrosion cracking resistance of ferritic alloys. It is widely employed in offshore oil and gas infrastructure, chemical processing plants, and desalination systems where aggressive chloride environments and high pressures demand superior pitting and crevice corrosion resistance. Engineers select duplex 2205 over single-phase austenitic or ferritic stainless steels when both mechanical robustness and extended service life in seawater or acidic chloride solutions are critical cost drivers.
offshore pipelines and subsea equipmentchemical reactor vesselsseawater heat exchangersdesalination plant componentspressure vessels in corrosive environmentsfasteners in coastal/marine 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 | 20°C | — | |
Young's Modulus(E) | — | Pa | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | kg/m³ | — | — |
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.