Duplex Stainless Steel
Twice the mechanical yield strength of standard austenitic steels with excellent resistance to stress corrosion cracking and pitting in chloride environments.
Quick Specifications
Twice the mechanical yield strength of standard austenitic steels with excellent resistance to stress corrosion cracking and pitting in chloride environments.
Applicable Standards
ASTM A240
→SA 240
→ASTM A790
→ASTM A789
→Size Range
Wall Thickness
Standards
Chemical Composition (% by weight)
Mechanical Properties
Minimum values at room temperature.
Steel Solutions Across Critical Industries
Desalination
Reverse osmosis (RO) high pressure pumps, brine headers, and seawater intake manifolds.
Oil & Gas
Flowlines, production manifolds, sour gas risers, and subsea pipe systems.
Chemical Tankers
Cargo tanks, cargo piping, and chemical marine vessel transport systems.
Pulp & Paper
Digestors, bleach washers, blow tanks, and black liquor evaporators.
Frequently Asked Questions about Duplex Stainless Steel 2205
Duplex 2205 is a nitrogen-enhanced dual-phase stainless steel that possesses approximately 50% ferrite and 50% austenite, delivering yield strength twice that of 316L with supreme chloride stress corrosion cracking resistance.
NSW Steel supplies Duplex 2205 qualified to NORSOK M-650 / M-630, with ASTM G48 Method A pitting testing at 25°C, ferrite count testing per ASTM E562, Charpy impact at -46°C, and EN 10204 3.1/3.2 certification.