2205 Duplex Stainless Steel
Duplex Stainless Steel 2205/S31803
|Chemical Compostions of Duplex Stainless steel 2205(00Cr22Ni5Mo3N,S31803) %|
2205 Duplex/Super Duplex Stainless Steel (1.4462,UNS S31803/UNS S32205)
The yield strength is about twice that of austenitic stainless steels, thus allowing a designer to save weight and making the alloy more cost competitive when compared to 316L or 317L.
Alloy 2205 (UNS S32305/S31803) is a 22% chromium, 3% molybdenum, 5-6% nickel, nitrogen alloyed duplex stainless steel with high general, localized, and stress corrosion resistance properties in addition to high strength and excellent impact toughness.
Alloy 2205 provides pitting and crevice corrosion resistance superior to 316L or 317L austenitic stainless steels in almost all corrosive media. It also has high corrosion and erosion fatigue properties as well as lower thermal expansion and higher thermal conductivity than austenitic.
ASTM/ASME………..A240 UNS S32205/S31803
EURONORM………..1.4462 X2CrNiMoN 22.5.3
AFNOR……………….Z3 CrNi 22.05 AZ
DIN…………………….W. Nr 1.4462
Pressure vessels, tanks, piping, and heat exchangers in the chemical processing industry
Piping, tubing, and heat exchangers for the handling of gas and oil
Effluent scrubbing systems
Pulp and paper industry digesters, bleaching equipment, and stock-handling systems
Rotors, fans, shafts, and press rolls requiring combined strength and corrosion resistance
Cargo tanks for ships and trucks
Food processing equipment
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