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Duplex Steel Seamless Pipe/Tube

Duplex steel A789 S32205/2205/S31803 Seamless U bend tubes

Applications:

Heat Exchangers: Used in high-pressure and corrosive environments, such as petrochemical plants, power generation, and oil refineries, to efficiently transfer heat.
Desalination Plants: Handles seawater's corrosive nature, providing long-lasting performance in seawater cooling and desalination processes.
Chemical Processing: Ideal for handling corrosive chemicals, acids, and caustic substances in reactors, pipelines, and other processing equipment.

Pulp and Paper Industry: Used in bleaching equipment where resistance to acidic environments is necessary for preventing corrosion.

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Description

Product material

2205/S31803 duplex steel seamless U tubes are widely used in heat exchanger system, it is designed for high temperature and high pressure applications, especially steam condensing or hot oil systems, TOKOTECH can offer a wide range size of duplex steel seamless U tubes.

Size available and pressure rating for ASTM A789 2205/S31803 duplex steel U seamless tube:

Grade

Type

O.D.

Ave.W.T.

YS

YS

TS

TS

Max Theoretical Working Pressure

Theoretcial Collapse Pressure

Theoretical Burst Pressure

 

 

Inch

MM

Inch

MM

MPA

KSI

MPA

KSI

PSI

PSI

PSI

2205/S31803

Seamless

1/4

6.35

0.035

0.89

450

70

655

95

14440

15166

23486

2205/S31803

Seamless

1/4

6.35

0.049

1.24

450

70

655

95

21026

19959

32722

2205/S31803

Seamless

1/4

6.35

0.065

1.65

450

70

655

95

29538

24731

43542

2205/S31803

Seamless

3/8

9.53

0.035

0.89

450

70

655

95

9348

10646

15755

2205/S31803

Seamless

3/8

9.53

0.049

1.24

450

70

655

95

13399

14305

21950

2205/S31803

Seamless

3/8

9.53

0.065

1.65

450

70

655

95

18451

18213

29208

2205/S31803

Seamless

1/2

12.7

0.035

0.89

450

70

655

95

6917

8195

11862

2205/S31803

Seamless

1/2

12.7

0.049

1.24

450

70

655

95

9841

11118

16527

2205/S31803

Seamless

1/2

12.7

0.065

1.65

450

70

655

95

13427

14329

21991

2205/S31803

Seamless

1/2

12.7

0.083

2.11

450

70

655

95

17673

17655

28122

2205/S31803

Seamless

3/4

19.05

0.035

0.89

450

70

655

95

4548

5603

7935

2205/S31803

Seamless

3/4

19.05

0.049

1.24

450

70

655

95

6424

7672

11055

2205/S31803

Seamless

3/4

19.05

0.065

1.65

450

70

655

95

8688

10000

14711

2205/S31803

Seamless

3/4

19.05

0.083

2.11

450

70

655

95

11319

12489

18812

2205/S31803

Seamless

 

13

0.035

0.89

450

70

655

95

6751

8020

11591

2205/S31803

Seamless

 

13

 

1

450

70

655

95

7634

8939

13024

2205/S31803

Seamless

 

13

0.049

1.24

450

70

655

95

9600

10888

16149

2205/S31803

Seamless

 

13

0.065

1.65

450

70

655

95

13090

14043

21489

2205/S31803

Seamless

 

13

0.083

2.11

450

70

655

95

17216

17320

27480

2205/S31803

Seamless

 

15.8

0.035

0.89

450

70

655

95

5515

6686

9554

2205/S31803

Seamless

 

15.8

 

1

450

70

655

95

6229

7463

10734

2205/S31803

Seamless

 

15.8

0.049

1.24

450

70

655

95

7812

9121

13311

2205/S31803

Seamless

 

15.8

0.065

1.65

450

70

655

95

10603

11834

17712

2205/S31803

Seamless

 

15.8

0.083

2.11

450

70

655

95

13871

14700

22650

2205/S31803

Seamless

 

16

0.035

0.89

450

70

655

95

5444

6607

9435

2205/S31803

Seamless

 

16

 

1

450

70

655

95

6148

7376

10601

2205/S31803

Seamless

 

16

0.049

1.24

450

70

655

95

7710

9016

13146

2205/S31803

Seamless

 

16

0.065

1.65

450

70

655

95

10462

11702

17492

2205/S31803

Seamless

 

16

0.083

2.11

450

70

655

95

13681

14542

22369

2205/S31803

Seamless

 

17

0.035

0.89

450

70

655

95

5113

6240

8884

2205/S31803

Seamless

 

17

 

1

450

70

655

95

5773

6969

9982

2205/S31803

Seamless

 

17

0.049

1.24

450

70

655

95

7235

8527

12378

2205/S31803

Seamless

 

17

0.065

1.65

450

70

655

95

9805

11084

16471

2205/S31803

Seamless

 

17

0.083

2.11

450

70

655

95

12805

13800

21063

2205/S31803

Seamless

 

18

0.035

0.89

450

70

655

95

4821

5912

8394

2205/S31803

Seamless

 

18

 

1

450

70

655

95

5442

6605

9432

2205/S31803

Seamless

 

18

0.049

1.24

450

70

655

95

6815

8087

11696

2205/S31803

Seamless

 

18

0.065

1.65

450

70

655

95

9227

10528

15563

2205/S31803

Seamless

 

18

0.083

2.11

450

70

655

95

12034

13128

19901

2205/S31803

Seamless

 

20

0.035

0.89

450

70

655

95

4326

5349

7560

2205/S31803

Seamless

 

20

 

1

450

70

655

95

4881

5979

8495

2205/S31803

Seamless

 

20

0.049

1.24

450

70

655

95

6107

7331

10534

2205/S31803

Seamless

 

20

0.065

1.65

450

70

655

95

8252

9566

14016

2205/S31803

Seamless

 

20

0.083

2.11

450

70

655

95

10741

11961

17924

2205/S31803

Seamless

 

21.3

0.035

0.89

450

70

655

95

4056

5037

7102

2205/S31803

Seamless

 

21.3

 

1

450

70

655

95

4574

5633

7979

2205/S31803

Seamless

 

21.3

0.049

1.24

450

70

655

95

5720

6911

9895

2205/S31803

Seamless

 

21.3

0.065

1.65

450

70

655

95

7722

9029

13166

2205/S31803

Seamless

 

21.3

0.083

2.11

450

70

655

95

10040

11307

16837 

Chemical composition:

Standard

Grade

CHEMICAL COMPOSITION(%)

 

 

 

 

 

 

 

 

 

 

 

C

Mn

P

S

Si

Ni

Cr

Mo

N

Cu

ASTM A789

S32205/2205

0.030

2.00

0.03

0.02

1.00

4.5-6.5

22.0-23.0

3.0-3.5

0.14-0.2

-

 

S31803

0.03

2.00

0.03

0.02

1.00

4.5-6.5

21.0-23.0

2.5-3.5

0.08-0.2

-

ASTM A789/789M Dimension tolerance for 2205/s31803 duplex steel U tube

O.D. mm

O.D. tolerance(mm)

Thickness Tolerance

＜12.7

-0.13,+0.13

-15%,+15%

≥12.7-38.1

-0.13,+0.13

-10%,+10%

≥38.1-88.9

-0.25,+0.25

-10%,+10%

≥88.9-139.7

-0.38,+0.38

-10%,+10%

≥139.7-203.2

-0.76,+0.76

-10%,+10%
About Us

Shanghai Toko Technology Co.,ltd.

Shanghai Toko Technology Co.,ltd. is professional Duplex steel A789 S32205/2205/S31803 Seamless U bend tubes Suppliers and Duplex steel A789 S32205/2205/S31803 Seamless U bend tubes Factory, located in Shanghai, China, and has been worked in the field of industrial piping for 11 years. We are committed to manufacturing and exporting stainless steel seamless pipe, stainless steel welded pipes, stainless steel fittings and flanges, nickel alloy products, Titanium seamless and welded tubes, etc. Our factories are all ISO&PED certificated, and the products can be produced in standard ASTM, JIS, DIN, EN, GOST, etc. Our products are widely used in the Oil and Gas, Petrochemical, Sugar Refining, Water Process, Desalination, Geothermal industry etc. We exported to dozens of countries and regions such as USA, Canada, Japan, Germany, France, Korea, Turkey ect.

Our Vision: To be an excellent supplier of global industrial piping system solutions.

Our Mission: To help global industrial pipeline construction with the products made in China.

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