2205 stainless steel pipe

2205 stainless steel (marketing department of Shanghai HY Industry Co., Ltd)

2205 is a representative steel grade of duplex stainless steel. It accounts for almost 80% of all duplex steels. The most famous commercial grade of 2205 is SAF 2205 produced by Sandvik, Sweden. SAF is the abbreviation of Sandvik Austenite Ferrite. Other well-known manufacturers include Outokumpu, ATI, Industry and so on.

The “duplex” of duplex stainless steel refers to having both austenite and ferrite microstructures. In duplex stainless steels, the ferrite and austenite phases are approximately equal. Due to this special metallographic structure, duplex stainless steel has the characteristics of both austenitic and ferritic stainless steel, and its performance is more excellent.

From the point of view of chemical composition, 2205 can be regarded as increasing Cr content and reducing Ni content on the basis of austenitic 316L grade, and fine-tuning other components. Compared with 316L, the strength and corrosion resistance of 2205 are greatly improved.

In terms of strength, the yield strength of 2205 is about twice that of 316L. Due to this higher strength, the allowable stress of 2205 can be much higher. Therefore, in the same application scenario, such as steel pipes, the use of 2205 can reduce the wall thickness, reduce weight, and achieve cost savings. At the same time, 2205 is also a nickel-saving steel grade.

Grade comparison

Chinese

GB/T 20878

GB/T 21833

GB/T 31303

022Cr22Ni5Mo3N

(00Cr22Ni5Mo3N)

digital code:S22253

022Cr23Ni5Mo3N

(00Cr23Ni5Mo3N)

digital code:S22053

USA

ASTM A240

ASTM A276

ASTM A479

ASTM A789

ASTM A790

UNS S31803

UNS 32205

ASTM A182

Forgings Grade

F51

F60

Japan

JIS G3459

JIS G4304

JIS G4305

SUS 329J3L

Germeny

DIN

X2CrNiMoN22-5-3

W.Nr.

1.4462

chemical composition(wt%)

Country

Chinese

USA

SANDVIK

Grade

S22253

S22053

S31803

S32205

SAF 2205

C

≤0.03

≤0.03

≤0.03

≤0.03

≤0.03

Si

≤1.00

≤1.00

≤1.00

≤1.00

≤1.00

Mn

≤2.00

≤2.00

≤2.00

≤2.00

≤2.00

P

≤0.030

≤0.030

≤0.030

≤0.030

≤0.030

S

≤0.020

≤0.020

≤0.020

≤0.020

≤0.015

Ni

4.50

6.50

4.50

6.50

4.50

6.50

4.50

6.50

5.00

Cr

21.00

23.00

22.00

23.00

21.00

23.00

22.00

23.00

22.00

Mo

2.50

3.50

3.00

3.50

2.50

3.50

3.00

3.50

3.20

N

0.08

0.20

0.14

0.20

0.08

0.20

0.14

0.20

0.18

Shanghai HY Industry Co., Ltd has international first-class material production equipment such as high temperature alloy isothermal forging production line, CONSARC vacuum melting furnace, VAR vacuum arc remelting furnace etc., with strong professional ability and highly responsible management team. We are a member of China Application of nuclear energy materials, Member of the International Council of the Aeronautical Sciences. Years of experience in Corrosion Resistant Alloy & Superalloy. When you have superalloy material inquiry, please contact us without hesitation. Shanghai HY Industry Co., Ltd is Corrosion & fatigue nickel alloy professional manufacturer,We will provide you with sincere and thoughtful service.

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