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  • 2205 Stainless Steel Sheet/bar/pipe
  • 2205 Stainless Steel Sheet/bar/pipe

2205 Stainless Steel Sheet/bar/pipe

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toux Janet Chang

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Specification, Chemical & Mechanical Performance

Equivalent designations
UNS S32205
DIN W. Nr. 1.4462
Form ASTM
Rod, bar and shape A 276, A 484
Plate, sheet and strip A 240, A 480
Seamless and welded pipe A 790, A 999
Seamless and welded tubing A 789, A 1016
Fitting A 815, A 960
Forged or rolled pipe flange and forged fitting A 182, A 961
Billet and bar for forging A 314, A 484

Chemical composition

% Fe Cr Ni Mo C Mn Si P S N
min balance 22.0 4.5 3.0           0.14
max 23.0 6.5 3.5 0.030 2.00 1.00 0.030 0.020 0.20

Physical properties

Density 7.69 g/cm3
Melting range 1385-1443℃

Features: 2205 is a duplex stainless steel with nearly equal proportions of austenite and ferrite when properly heat treated. This microstructure makes it much more resistant to stress corrosion cracking than stainless steel 304 and 316L. 2205’s higher chromium, molybdenum and nitrogen contents give it significantly improved pitting and crevice corrosion resistance in the presence of chlorides. Its yield strength is about twice that of austenitic stainless steels. It is highly suitable for Applications in environments containing chlorides and hydrogen sulfide such as marine applications and oil and gas production.

 

Applications: Oil and gas industry piping, tubing and heat exchangers; pulp and paper industry bleaching equipment, liquor tanks and digesters; cargo tanks for ships and trucks; chemical processing industry pressure vessels, tanks, piping and heat exchangers; and food processing equipment.

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