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Description:Duplex 2205 is a nitrogen enhanced duplex stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels.

Corrosion Resistance:
2205 duplex stainless steel is a cost effective solution for many applications where the 300 series stainless steels are susceptible to chloride stress corrosion cracking. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. Increasing temperatures also increase the susceptibility of stainless steels to stress corrosion cracking.

Chemical Composition:

Cr	Ni	Mo	C	N	Mn	Si	P	S	Fe
22 ~ 23	4.5 ~ 6.5	3.0 ~ 3.5	0.03 max	0.14 ~ 0.20	2.00 max	1.00 max	0.03 max	0.02 max	Balance

Applications:
Chemical process vessels, piping and heat exchangers;
Food processing;
Oil field
Gas.

Mechanical Properties:

Ultimate Tensile Strength, ksi Minimum	0.2% Yield Strength, ksi Minimum	Hardness Max.
95	65	31 Rockwell C