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Stainless Steel Welded Pipe/Tube

Super duplex steel Control line/ welded coiled tubes/ASTM A789 UNS S32750

Applications：

Offshore Platforms: Used in various offshore applications where exposure to seawater and chloride-rich environments can cause rapid corrosion in lesser materials. The tubes help in controlling processes or injecting chemicals into pipelines.

Desalination Plants: Utilized in desalination systems to handle the corrosive effects of seawater in high-pressure applications, such as reverse osmosis systems and seawater transport.
 Subsea Well Control: Used in hydraulic control lines for subsea wellheads, valves, and downhole tools, providing excellent resistance to seawater corrosion and high-pressure environments.

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Description

Product material

TOKOTECH offered a wide range size of duplex steel welded coiled tubing. 2507/s32750 duplex steel welded coiled tubing is widely used in subsea oil well systems due to its long length. It has better corrosion resistance to seawater than common stainless steel, thus has a longer service life.

Chemical composition for S32750/2507:

Standard

Grade

CHEMICAL COMPOSITION(%)

 

 

 

 

 

 

 

 

 

 

 

 

C

Mn

P

S

Si

Ni

Cr

Mo

N

Cu

others

ASTM A789

S32750/2507

0.03

1.2

0.035

0.02

0.8

6.0-8.0

24.0-26.0

3.0-5.0

0.24-0.32

0.5

-

2507/S32750 duplex steel welded coiled tubing pressure rating:

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

1/4

6.35

0.035

0.89

550

80

800

116

16502

17333

28678

1/4

6.35

0.049

1.24

550

80

800

116

24029

22810

39956

1/4

6.35

0.065

1.65

550

80

800

116

33758

28264

53167

3/8

9.53

0.035

0.89

550

80

800

116

10684

12167

19237

3/8

9.53

0.049

1.24

550

80

800

116

15313

16349

26802

3/8

9.53

0.065

1.65

550

80

800

116

21087

20815

35665

1/2

12.7

0.035

0.89

550

80

800

116

7905

9365

14484

1/2

12.7

0.049

1.24

550

80

800

116

11247

12707

20180

1/2

12.7

0.065

1.65

550

80

800

116

15345

16376

26853

1/2

12.7

0.083

2.11

550

80

800

116

20198

20177

34339

3/4

19.05

0.035

0.89

550

80

800

116

5198

6403

9689

3/4

19.05

0.049

1.24

550

80

800

116

7342

8768

13499

3/4

19.05

0.065

1.65

550

80

800

116

9929

11429

17962

3/4

19.05

0.083

2.11

550

80

800

116

12935

14273

22970 

ASTM A789/789M Dimension tolerance for 2507/s32750 duplex steel coiled tubing

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 Control line/ welded coiled tubes/ASTM A789 UNS S32750 Suppliers and Super duplex steel Control line/ welded coiled tubes/ASTM A789 UNS S32750 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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