YUHONG GROUP Recent Finished Order of ASTM A790 S32205 Duplex Stainless Steel SMLS Tube

ASTM A790 This specification covers seamless and straight-seam  welded duplex stainless steel pipe intended for general corrosive  service, with particular emphasis on resistance to stress  corrosion cracking. 

Grade S32205 is the unified numbering system (UNS) designation.The "22" means approximately 22% Chromium, and the "05" means approximately 5% Nickel.

S32205 has excellent strength, it has about twice the yield strength of standard 300-series austenitic stainless steels (like 304/316). What's more, good toughness and ductility is also one advantage.And Ii offers much better resistance to chloride stress corrosion cracking (CSCC), pitting, and crevice corrosion than 316L stainless steel. 

Checmical Requiirements

C 0.03%

Mn 2.00%

P 0.03%

S 0.02%

Si 1.00%

Ni 4.5-6.5%

Cr 22.0-23.0%

Mo 3.0-3.5%

N 0.14-0.20%

YUHONG GROUP can manufacture streight duplex stainless steel tubes and U tubes of this material with high quality!