图片名称

Duplex Stainless Pipe

Types: Seamless, Welded
Parameter: 1/2''~48'', SCH5~SCHXXS
End: Beveled End, Plain End
Service: Cutting, Welding, Fabricated, Customized

Classification :

Duplex Stainless Pipe

PRODUCT DETAILS

Description

Duplex Stainless Steel (DSS) including grades duplex 2205(S31803) and super duplex, they are commonly consist of 50% ferrite and 50% austenite, and generally requires not less than 30%. Duplex stainless steel has good welding performance and high strength. Compared with austenitic stainless steel, it is about double yield strength of stainless steel 316, 317 etc., it make the equipment lighter and stronger. Duplex stainless steel pipe has very good resistance to localized corrosion and stress corrosion cracking. Duplex steel is not intended to be used at temperatures above 300°C due to embrittlement, the continuous use temperature is from -50 to 250 °C.

Typical Properties:

Low cost

Alternative to high nickel based alloys

High strength

Corrosion resistant

Very hard machining

Applications

2205, used in chemical processing, oil and gas processing equipment, marine and other high chloride environments, effluent scrubbing systems, pulp and paper industry, cargo tanks for ships and trucks, food processing equipment, biofuels plant.

2304, used in chloride containing environments, welded pipe systems, transportation, heat exchanger tubes, construction, pressure vessels, caustic solutions and the food industry.

2507, used in oil and gas industry equipment, offshore platforms, chemical process industries, desalination plants, mechanical and structural components and power industry FGD systems.

 

Specification&Standard

Pipe OD
mm

Pipe WT
mm

in.

Sch

Kg/m

13.72

1.65

1/4

10S

0.50

13.72

2.24

1/4

40S

0.64

13.72

3.02

1/4

80S

0.81

17.15

1.65

3/8

10S

0.64

17.15

2.31

3/8

40S

0.86

17.15

3.20

3/8

80S

1.12

21.34

2.11

1/2

10S

1.02

21.34

2.77

1/2

40S

1.29

21.34

3.73

1/2

80S

1.65

26.67

2.11

3/4

10S

1.30

26.67

2.87

3/4

40S

1.71

26.67

3.91

3/4

80S

2.23

33.40

2.77

1

10S

2.13

33.40

3.38

1

40S

2.54

33.40

4.55

1

80S

3.29

33.40

6.352)

1

160

4.30

42.16

2.77

10S

2.73

42.16

3.56

40S

3.44

42.16

4.85

80S

4.53

42.16

6.352)

160

5.69

48.26

2.77

10S

3.16

48.26

3.68

40S

4.11

48.26

5.08

80S

5.49

60.33

2.77

2

10S

3.99

60.33

3.91

2

40S

5.52

60.33

5.54

2

80S

7.60

60.33

8.742)

2

160

11.29

73.03

3.05

10S

5.35

73.03

5.16

40S

8.77

73.03

7.01

80S

11.59

88.90

3.05

3

10S

6.56

88.90

5.49

3

40S

11.47

88.90

7.62

3

80S

15.51

88.90

11.132)

3

160

21.67

101.60

3.05

10S

7.53

101.60

5.74

40S

13.78

101.60

8.08

80S

18.92

114.30

3.05

4

10S

8.50

114.30

6.02

4

40S

16.32

114.30

8.56

4

80S

22.67

114.30

13.492)

4

160

34.05

141.30

6.55

5

40S

22.10

141.30

9.53

5

80S

31.44

141.30

15.882)

5

160

49.87

168.28

3.4

6

10S

14.04

168.28

7.11

6

40S

28.69

168.28

10.97

6

80S

43.21

168.28

14.27

6

120

54.75

168.28

18.262)

6

160

68.59

219.08

8.18

8

40S

43.20

219.08

12.7

8

80S

65.63

219.08

18.23

8

120

91.30

219.08

23.012)

8

160

112.97

Note: For sizes other than given, please check with our office for further confirmation.

 

Grade Available : UNS S31803, UNS S32205, UNS S31500, UNS S32304, UNS S32750, UNS S32760

Specification :

ASTM A789 (ASME SA789): Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

ASTM A790 (ASME SA790): Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe

ASTM A928 - Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal

The specification of EN 10216-5 is available.

Grade

Chemical Composition

C (max)

Si (max)

Mn (max)

P (max)

S (max)

Cr

Ni

Mo

N

Cu

S32750

0.030

0.8

1.2

0.030

0.015

24.0-26.0

6.8-8.0

3.0-5.0

0.24-0.32

0.5 max

S13803

0.030

1.0

2.0

0.030

0.020

21.0-23.0

4.50-6.50

2.50-3.50

0.08-0.20

 

 

Chemical Composition

 

Steel No.

Standard No.

Type

Chemical composition

Other

C

Si

S

P

Mn

Cr

Ni

Mo

Other

ób

ós

δ5

HB

0Cr26Ni5Mo2

GB1220

Bar

0.08

1

0.03

0.035

1.5

23-28

3-6

1-3

 

590

390

18

277

ψ%:40

0Cr26Ni5Mo2

GB4237

Plate

0.08

1

0.03

0.035

1.5

23-28

3-6

1-3

 

590

390

18

277

 

0Cr26Ni5Mo2

GB/T14976

Pipe

0.08

1

0.03

0.035

1.5

23-28

3-6

1-3

 

590

390

18

 

 

00Cr18Ni5Mo3Si2

GB1220

Bar

0.03

1.3-2

0.03

0.035

1.2-1.6

18-19.5

4.5-5.5

2.5-3

 

590

390

20

 

ψ%:40

00Cr18Ni5Mo3Si2

GB4237

Plate

0.03

1.3-2

0.03

0.03

1.2-1.6

18-19.5

4.5-5.5

2.5-3

N:0.1

590

390

20

 

 

HDR

Q/SJB11-99

Pipe

0.03

1

0.03

0.035

2

23-26

4.5-7.5

2-3

 

650

450

27

 

 

 

Physical Propertie

 

Grade

Physical Propertie

Y.S. MPa (min)

T.S. MPa (min)

Elongation %

Hardness HRC

S32750

550

800

15

31

S13803

450

620

25

31

 

Process

 

 

Packing

Packaging and delivery

The company has the Shandong Dayang Steel Pipe Production Base Warehouse Area, Dadong Steel Pipe City Boutique Goods Yard Sales Area, etc., with an annual inventory of 70,000 tons.The annual round steel trade volume is 650,000 tons, with 50,000 tons of spot goods throughout the year, and the output value is about 6 billion yuan. The factory has eight pipe expansion production lines, mainly producing 300-1500mm outer diameter, with an annual output of 80,000 tons.

Packaging and delivery

Customer visit

Adhering to the tenet of "strict management, good reputation, strong strength, and high-quality service", the company serves customers and friends at home and abroad with high standards of scientific environmental protection, professional innovation, and currently exports to more than 150 countries and regions in Europe, America, South America, the Middle East, Asia, etc., and the products are well received by everyone!

Customer visit

Factory

The factory focuses on the research and development and manufacturing of seamless steel pipes, oil casing processing for oil fields and gas cylinder steel pipe products. It currently has one hot-rolled seamless steel pipe production line. The production process of the hot-rolled seamless steel pipe production line adopts conical perforation, precision pipe rolling and three-roller micro-tension sizing. The production specifications are: Φ50-Φ273mm, wall thickness: 4.5-40mm, and the online equipped ultrasonic flaw detection system, eddy current flaw detection system and other product detection systems have reached the industry leading level.

Factory

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