Duplex Steel Seamless Pipe/Tube

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Duplex Steel Seamless Pipe/Tube

Super duplex steel ASTM A789 S32750/2507 SEAMLESS U BEND TUBES/U BEND HEAT EXCHANGER TUBES

Applications:

Desalination Plants: U-bend tubes made from S32750 are used in multi-effect evaporators and other desalination equipment where saltwater and brine exposure is common. The material's superior corrosion resistance to chlorides makes it suitable for long-term use in such harsh environments.

Power Generation: In power plants, especially nuclear and thermal plants, S32750 U-bend heat exchanger tubes are employed for high-pressure and high-temperature applications, such as feedwater heaters and steam condensers, where durability and corrosion resistance are critical.

Pulp and Paper Industry: S32750 U-bend tubes are also applied in black liquor recovery boilers and other corrosive environments encountered during the pulping process, where resistance to acidic and chloride-rich chemicals is necessary.

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Description

Product material

2507/S32750 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, heat exchanger or hot oil systems, TOKOTECH can offer a wide range size of duplex steel seamless U tubes.

Chemical Composition & Mechanical properties as per ASTM A789/A789M

Grade CHEMICAL COMPOSITION(%) Mechanical Properties
C(max) Mn(max) P(max) S(max) Si(max) Ni  Cr Mo N Cu Others TS,Min(Mpa) YS, Min(Mpa) Elongation Longitudinal, min%
S32750 0.030 1.2 0.035 0.020 0.80 6.0-8.0 24.0-26.0 3.0-5.0 0.24-0.32 0.50 - 800 500 15

(%Cr+3.3x%MO+16x%N≥41)

Size available and pressure rating for ASTM A789 2507/S32750 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

2507/S32750

Seamless

1/4

6.35

0.035

0.89

550

80

800

116

16502

17333

28678

2507/S32750

Seamless

1/4

6.35

0.049

1.24

550

80

800

116

24029

22810

39956

2507/S32750

Seamless

1/4

6.35

0.065

1.65

550

80

800

116

33758

28264

53167

2507/S32750

Seamless

3/8

9.53

0.035

0.89

550

80

800

116

10684

12167

19237

2507/S32750

Seamless

3/8

9.53

0.049

1.24

550

80

800

116

15313

16349

26802

2507/S32750

Seamless

3/8

9.53

0.065

1.65

550

80

800

116

21087

20815

35665

2507/S32750

Seamless

1/2

12.7

0.035

0.89

550

80

800

116

7905

9365

14484

2507/S32750

Seamless

1/2

12.7

0.049

1.24

550

80

800

116

11247

12707

20180

2507/S32750

Seamless

1/2

12.7

0.065

1.65

550

80

800

116

15345

16376

26853

2507/S32750

Seamless

1/2

12.7

0.083

2.11

550

80

800

116

20198

20177

34339

2507/S32750

Seamless

3/4

19.05

0.035

0.89

550

80

800

116

5198

6403

9689

2507/S32750

Seamless

3/4

19.05

0.049

1.24

550

80

800

116

7342

8768

13499

2507/S32750

Seamless

3/4

19.05

0.065

1.65

550

80

800

116

9929

11429

17962

2507/S32750

Seamless

3/4

19.05

0.083

2.11

550

80

800

116

12935

14273

22970

2507/S32750

Seamless

 

13

0.035

0.89

550

80

800

116

7716

9165

14153

2507/S32750

Seamless

 

13

 

1

550

80

800

116

8724

10215

15903

2507/S32750

Seamless

 

13

0.049

1.24

550

80

800

116

10971

12443

19719

2507/S32750

Seamless

 

13

0.065

1.65

550

80

800

116

14960

16049

26239

2507/S32750

Seamless

 

13

0.083

2.11

550

80

800

116

19676

19794

33554

2507/S32750

Seamless

 

15.8

0.035

0.89

550

80

800

116

6303

7641

11666

2507/S32750

Seamless

 

15.8

 

1

550

80

800

116

7118

8529

13107

2507/S32750

Seamless

 

15.8

0.049

1.24

550

80

800

116

8928

10424

16253

2507/S32750

Seamless

 

15.8

0.065

1.65

550

80

800

116

12118

13525

21627

2507/S32750

Seamless

 

15.8

0.083

2.11

550

80

800

116

15853

16800

27657

2507/S32750

Seamless

 

16

0.035

0.89

550

80

800

116

6221

7551

11521

2507/S32750

Seamless

 

16

 

1

550

80

800

116

7026

8429

12945

2507/S32750

Seamless

 

16

0.049

1.24

550

80

800

116

8811

10304

16052

2507/S32750

Seamless

 

16

0.065

1.65

550

80

800

116

11956

13374

21359

2507/S32750

Seamless

 

16

0.083

2.11

550

80

800

116

15636

16619

27314

2507/S32750

Seamless

 

17

0.035

0.89

550

80

800

116

5844

7132

10848

2507/S32750

Seamless

 

17

 

1

550

80

800

116

6598

7965

12189

2507/S32750

Seamless

 

17

0.049

1.24

550

80

800

116

8268

9745

15115

2507/S32750

Seamless

 

17

0.065

1.65

550

80

800

116

11206

12668

20112

2507/S32750

Seamless

 

17

0.083

2.11

550

80

800

116

14634

15771

25719

2507/S32750

Seamless

 

18

0.035

0.89

550

80

800

116

5510

6757

10250

2507/S32750

Seamless

 

18

 

1

550

80

800

116

6219

7548

11517

2507/S32750

Seamless

 

18

0.049

1.24

550

80

800

116

7789

9243

14281

2507/S32750

Seamless

 

18

0.065

1.65

550

80

800

116

10545

12032

19003

2507/S32750

Seamless

 

18

0.083

2.11

550

80

800

116

13753

15004

24301

2507/S32750

Seamless

 

20

0.035

0.89

550

80

800

116

4944

6113

9232

2507/S32750

Seamless

 

20

 

1

550

80

800

116

5578

6834

10373

2507/S32750

Seamless

 

20

0.049

1.24

550

80

800

116

6979

8379

12862

2507/S32750

Seamless

 

20

0.065

1.65

550

80

800

116

9431

10933

17115

2507/S32750

Seamless

 

20

0.083

2.11

550

80

800

116

12275

13670

21886

2507/S32750

Seamless

 

21.3

0.035

0.89

550

80

800

116

4635

5757

8672

2507/S32750

Seamless

 

21.3

 

1

550

80

800

116

5228

6437

9743

2507/S32750

Seamless

 

21.3

0.049

1.24

550

80

800

116

6537

7898

12082

2507/S32750

Seamless

 

21.3

0.065

1.65

550

80

800

116

8826

10319

16077

2507/S32750

Seamless

 

21.3

0.083

2.11

550

80

800

116

11474

12922

20558

2507/S32750

Seamless

 

25.4

0.035

0.89

550

80

800

116

3872

4862

7279

2507/S32750

Seamless

 

25.4

 

1

550

80

800

116

4364

5442

8179

2507/S32750

Seamless

 

25.4

0.049

1.24

550

80

800

116

5449

6688

10141

2507/S32750

Seamless

 

25.4

0.065

1.65

550

80

800

116

7339

8765

13495

2507/S32750

Seamless

 

25.4

0.083

2.11

550

80

800

116

9515

11016

17257 

ASTM A789/789M Dimension tolerance for 2507/S32750 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 Super duplex steel ASTM A789 S32750/2507 SEAMLESS U BEND TUBES/U BEND HEAT EXCHANGER TUBES Suppliers and Super duplex steel ASTM A789 S32750/2507 SEAMLESS U BEND TUBES/U BEND HEAT EXCHANGER 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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