The duplex stainless steel 2205 alloy is a made up of 22% chromium, 2.5% molybdenum and 4.5% nickel nitrogen alloy. It has high strength, good impact toughness as well as good overall and is resistant to stress corrosion.

Application area:

High-pressure pipe , oil and gas pipeline,heat exchanger,Sewage treatment system

Chemical composition(WT%)

(C) :≤0.003

(Si) :≤1.00

(Mn) :≤2.00

(Cr) :21.0 to 24.0

(P) :≤0.004

(S) :≤0.003

(Ni) : 4.5 to 6.5%

(Mo) :2.5 to 3.5

(N) : 0.08 to 0.2

physical property

tensile strength:≥450MPa

Yield strength:≥620MPa

The normal size of duplex 2205 stainless steel sheet is 1000mmx2000mm, 1219mmx2438mm, 1500mmx6000mm,1800mmx6000mm, thickness range from 0.3mm to 12mm are all ready is stock.

Usually, it only takes 3 working days for us to make delivery if the products are ready in stock.

Of course, unusual size can also be customized according your request.

FAQ: 

The advantage of 2205 duplex stainless steel

1.The yield strength is more than twice higher than the common austenitic stainless steel, and it has the sufficient plasticity and toughness of molding. The wall thickness of a storage tank or a pressure vessel made of duplex stainless steel is reduced by 30-50% comparing with the conventional austenite, which is good on reducing the cost.

2.It has excellent corrosion resistance. Comparing with other austenitic stainless steel alloy, its wear resistance, corrosion and fatigue corrosion are better .

3.Its coefficient of linear expansion is lower than austenitic stainless steel which is nearly same as carbon steel. So its meaningful when combining with carbon steel in some industry.

4.Whenever in dynamic or static loading conditions, it has higher energy absorption capacity than austenitic stainless steel. 2205 duplex stainless steel has more practical value when dealing with the unexpected incidents of the structural parts such as collision, explosion, etc.

2205 duplex stainless steel