Double-Sided Submerged Arc Welded Spiral Steel Pipe
  • Double-Sided Submerged Arc Welded Spiral Steel PipeDouble-Sided Submerged Arc Welded Spiral Steel Pipe
  • Double-Sided Submerged Arc Welded Spiral Steel PipeDouble-Sided Submerged Arc Welded Spiral Steel Pipe
  • Double-Sided Submerged Arc Welded Spiral Steel PipeDouble-Sided Submerged Arc Welded Spiral Steel Pipe
  • Double-Sided Submerged Arc Welded Spiral Steel PipeDouble-Sided Submerged Arc Welded Spiral Steel Pipe
  • Double-Sided Submerged Arc Welded Spiral Steel PipeDouble-Sided Submerged Arc Welded Spiral Steel Pipe
  • Double-Sided Submerged Arc Welded Spiral Steel PipeDouble-Sided Submerged Arc Welded Spiral Steel Pipe
  • Double-Sided Submerged Arc Welded Spiral Steel PipeDouble-Sided Submerged Arc Welded Spiral Steel Pipe
  • Double-Sided Submerged Arc Welded Spiral Steel PipeDouble-Sided Submerged Arc Welded Spiral Steel Pipe
  • Double-Sided Submerged Arc Welded Spiral Steel PipeDouble-Sided Submerged Arc Welded Spiral Steel Pipe
  • Double-Sided Submerged Arc Welded Spiral Steel PipeDouble-Sided Submerged Arc Welded Spiral Steel Pipe

Double-Sided Submerged Arc Welded Spiral Steel Pipe

You can rest assured to buy Pengfa Double-Sided Submerged Arc Welded Spiral Steel Pipe from our factory and we will offer you the best after-sale service and timely delivery. Good strength and toughness: Spiral steel pipe is made of high quality steel, with high tensile strength and compressive capacity, can withstand the impact of high pressure steam and hot water. Good corrosion resistance: The surface of spiral steel pipe is usually treated with hot dip galvanized or plastic spraying, which has good corrosion resistance and can effectively prolong the service life of the pipe.

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Product Description

Good thermal insulation performance: the spiral steel pipe has excellent thermal insulation performance, which can greatly reduce heat loss and improve the thermal efficiency of heating system.

 

Environmental protection and energy saving: spiral steel pipe can be recycled, conducive to energy saving and emission reduction, in line with the national environmental policy requirements.As the professional manufacture, we would like to provide you Pengfa Double-Sided Submerged Arc Welded Spiral Steel Pipe. The pipe is available in a range of sizes and thicknesses, and is manufactured to meet the requirements of various national and international standards, including the American Petroleum Institute (API) 5L standard, which specifies the requirements for line pipe used in the oil and gas industry.


Double-Sided Submerged Arc Welded Spiral Steel Pipe is highly durable and resistant to corrosion, making it suitable for use in harsh environments. It is also easy to install and maintain, and has a long service life, making it a cost-effective choice for many applications.

 

Product Parameter (Specification)

Diameter

mm

Diameter

mm

Wall thickness

Kg/m

Single weight

(mpa) Minimum test pressure

A

L210

B

L245

X42

L29

X46

L320

X52

L360

20"

508

5.6

69.38

2.8

3.2

5.8

6.3

7.1

6.4

79.16

3.2

3.7

6.6

7.3

8.2

7.1

87.70

3.5

4.1

7.3

8.1

9.1

7.9

97.43

3.9

4.6

8.1

9.0

10.1

8.7

107.12

4.3

5.0

8.9

9.9

11.1

9.5

116.78

4.7

5.5

9.8

10.8

12.1

10.3

126.41

5.1

6.0

10.6

11.7

13.1

11.1

136.01

5.5

6.4

11.4

12.6

14.2

11.9

145.58

5.9

6.9

12.2

13.5

15.2

12.7

155.12

6.3

7.4

13.1

14.4

16.2

14.3

174.10

7.1

8.3

14.7

16.2

18.2

15.9

192.95

7.9

9.2

16.3

18.0

20.3

24"

609.6

6.4

95.26

2.6

3.1

5.5

6.0

6.8

7.1

105.56

2.9

3.4

6.1

6.7

7.5

7.9

117.30

3.3

3.8

6.8

7.5

8.4

8.7

129.00

3.6

4.2

7.4

8.2

9.2

9.5

140.68

3.9

4.6

8.1

9.0

10.1

10.3

152.32

4.2

4.9

8.8

9.8

11.0

11.1

163.93

4.6

5.3

9.5

10.5

11.8

11.9

175.51

4.9

5.7

10.2

11.2

12.6

12.9

187.06

5.2

6.1

10.9

12.0

13.5

14.3

210.07

5.9

6.9

12.2

13.5

15.2

15.9

232.94

6.6

7.7

13.6

15.0

16.9

30"

762

6.4

111.20

2.3

2.6

4.7

5.2

5.8

7.1

123.24

2.5

2.9

5.2

5.8

6.5

7.9

136.97

2.8

3.3

5.8

6.4

7.2

8.7

150.67

3.1

3.6

6.4

7.0

7.9

9.5

164.34

3.4

3.9

7.0

7.7

8.7

10.3

177.98

3.7

4.3

7.6

8.3

9.4

11.1

191.58

3.9

4.6

8.1

9.0

10.1

11.9

205.15

4.2

4.9

8.7

9.6

10.8

12.7

218.69

4.5

5.3

9.3

10.3

11.6

14.3

245.68

5.1

5.9

10.5

11.6

13.0

15.9

272.54

5.6

6.6

11.7

12.9

14.5

32"

812.8

6.4

127.30

2.0

2.3

4.1

4.5

5.1

7.1

141.10

2.2

2.6

4.6

5.0

5.7

7.9

156.84

2.4

2.9

5.1

5.6

6.3

8.7

172.56

2.7

3.1

5.6

6.2

6.9

9.5

188.24

2.9

3.4

6.1

6.7

7.6

10.3

203.88

3.2

3.7

6.6

7.3

8.2

11.1

219.50

3.4

4.0

7.1

7.9

8.8

11.9

235.09

3.7

4.3

7.6

8.4

9.5

12.7

250.64

3.9

4.6

8.2

9.0

10.1

14.3

281.65

4.4

5.2

9.2

10.1

11.4

15.9

312.54

4.9

5.7

10.2

11.3

12.7

36"

914.4

6.4

143.24

1.8

2.1

3.7

4.0

4.5

7.1

158.79

2.0

2.3

4.1

4.5

5.0

7.9

176.52

2.2

2.5

4.5

5.0

5.6

8.7

194.22

2.4

2.8

5.0

5.5

6.2

9.5

211.90

2.6

3.1

5.4

6.0

6.7

10.3

219.51

2.8

3.3

5.9

6.5

7.3

11.1

247.15

3.1

3.6

6.3

7.0

7.9

11.9

264.72

3.3

3.8

6.8

7.5

8.4

12.7

282.27

3.5

4.1

7.3

8.0

9.0

14.3

317.27

3.9

4.6

8.2

9.0

10.1

15.9

352.14

4.4

5.1

9.1

10.0

11.3

17.5

386.88

4.8

5.6

10.0

11.0

12.4


 

Diameter

mm

Diameter

mm
Wall thickness

Kg/m
Single weight

(mpa) Minimum test pressure

A
L210

B
L245

X42
L290

X46
L320

X52
L360

8.63"

219.1

5.6

29.48

6.4

7.5

11.1

12.3

13.8

6.4

33.57

7.4

8.6

12.7

14

15.8

7.0

36.61

8.1

9.4

13.9

15.3

17.3

7.9

41.14

9.1

10.6

15.7

17.3

19.5

8.2

42.65

9.4

11.0

16.3

18.0

20.2

8.7

45.14

10.0

11.7

17.3

19.1

20.7

10.75"

273.1

5.6

36.94

5.2

6.0

10.1

11.2

12.5

6.4

42.09

5.9

6.9

11.6

12.7

14.3

7.1

46.57

6.6

7.6

12.8

14.1

15.9

7.8

51.03

7.2

8.4

14.1

15.5

17.5

8.7

56.72

8.0

9.4

15.7

17.3

19.5

9.3

60.05

8.6

10.0

16.8

18.5

20.7

12.75"

323.9

5.6

43.96

4.4

5.1

8.5

9.4

10.6

6.4

50.11

5.0

5.8

9.7

10.7

12.71

7.1

55.47

5.5

6.4

10.8

11.9

13.4

7.9

61.56

6.1

7.2

12.0

13.9

14.9

8.4

65.35

6.5

7.6

12.8

14.1

15.9

8.7

67.62

6.8

7.9

13.2

14.6

16.4

9.5

73.65

7.4

8.6

14.5

16.0

17.9

10.3

79.65

8.0

9.3

15.7

17.3

19.5

11.1

85.62

8.6

10.1

16.9

18.6

20.7

12.7

97.46

9.9

11.5

19.3

20.7

20.7

14.3

109.18

11.1

13.0

20.7

20.7

20.7

14"

355.6

5.6

48.33

4.0

4.6

7.8

8.6

9.6

6.4

55.11

4.5

5.3

8.9

9.8

11.0

7.1

61.02

5.0

5.9

9.8

10.9

12.2

7.9

61.74

5.6

6.5

11.0

12.1

13.6

8.7

74.42

6.2

7.2

12.1

13.3

15.0

9.5

81.08

6.7

7.9

13.2

14.5

16.3

10.3

87.71

7.3

8.5

14.3

15.8

17.7

11.1

94.30

7.9

9.2

15.4

17.0

19.11

11.9

100.86

8.4

9.8

16.5

18.2

20.5

12.7

107.39

9.0

10.5

17.6

19.4

20.7

14.3

120.36

10.1

11.8

19.8

20.7

20.7

16"

406.4

5.6

55.35

3.5

4.1

6.8

7.5

8.4

6.4

63.13

4.0

4.6

7.8

8.6

9.6

7.1

69.91

4.4

5.1

8.6

9.5

10.7

7.9

77.63

4.9

5.7

9.6

10.6

11.9

8.7

85.32

5.4

6.3

10.6

11.6

13.1

9.5

92.98

5.9

6.9

11.5

12.7

14.3

10.3

100.61

6.4

7.5

12.5

13.8

15.5

11.1

108.20

6.9

8.0

13.5

14.9

16.7

11.9

115.77

7.4

8.6

14.4

15.9

17.0

12.7

123.30

7.9

9.2

15.4

17.0

19.1

14.3

138.27

8.9

10.3

17.3

19.1

20.7

15.9

153.11

9.9

11.5

19.3

20.7

20.7

18"

457.2

5.6

62.34

3.1

3.6

6.0

6.7

7.5

6.4

71.12

3.5

4.1

6.9

7.6

8.6

7.1

78.77

3.9

4.6

7.7

8.5

9.5

7.9

87.49

4.4

5.1

8.5

9.4

10.6

8.7

96.18

4.8

5.6

9.4

10.4

11.7

9.5

104.84

5.2

6.1

10.2

11.6

12.7

10.3

113.46

5.7

6.6

11.1

12.6

13.8

11.1

122.05

6.1

7.1

12.0

14.2

14.9

11.9

13062

6.6

7.7

12.8

14.2

15.9

12.7

139.15

7.0

8.2

13.7

15.1

17.0

14.3

156.11

7.9

9.2

15.4

17.0

19.2

15.9

172.95

8.8

10.2

17.2

18.9

20.7

 

Diameter

mm
Diameter

mm

Wall thickness

Kg/m
Single weight

(mpa) Minimum test pressure

A

L210

B

L245

X42

L290

X46

L320

X52

L360

42"

1066.8

7.9

196.39

2.0

2.3

4.1

4.5

5.0

8.7

216.11

2.2

2.5

4.5

4.9

5.5

9.5

235.79

2.4

2.7

4.9

5.4

6.1

10.3

255.45

2.6

3.0

5.3

5.8

6.6

11.1

275.07

2.8

3.2

5.7

6.3

7.1

11.9

294.66

3.0

3.4

6.1

6.7

7.6

12.7

314.22

3.2

3.7

6.5

7.2

8.1

14.3

353.24

3.5

4.1

7.3

8.1

9.1

15.9

392.13

3.9

4.6

8.2

9.0

10.1

17.5

430.90

4.3

5.1

9.0

9.9

11.2

48"

1219.2

8.7

259.66

1.8

2.1

3.7

4.1

4.6

9.5

283.35

2.0

2.3

4.1

4.5

5.1

10.3

307.01

2.1

2.5

4.4

4.9

5.5

11.1

330.63

2.3

2.7

4.8

5.2

5.9

11.9

354.23

2.5

2.9

5.1

5.6

6.3

12.7

377.79

2.6

3.1

5.4

6.0

6.8

14.3

424.82

3.0

3.4

6.1

6.8

7.6

15.9

471.73

3.3

3.8

6.8

7.5

8.5

17.5

518.51

3.6

4.2

7.5

8.3

9.3

54"

1371.6

9.5

330.91

1.7

2.0

3.5

3.8

4.3

10.3

358.57

1.8

2.1

3.8

4.2

4.7

11.1

386.20

2.0

2.3

4.1

4.5

5.1

11.9

413.80

2.1

2.5

4.4

4.8

5.4

12.7

441.37

2.3

2.6

4.7

5.1

5.8

14.3

496.41

2.5

3.0

5.2

5.8

6.5

15.9

551.32

2.8

3.3

5.8

6.4

7.2

17.5

606.11

3.1

3.6

6.4

7.1

8.0

60"

1524

9.5

378.70

1.5

1.7

3.0

3.4

3.8

10.3

410.38

1.6

1.9

3.3

3.6

4.1

11.1

442.04

1.7

2.0

3.6

3.9

4.4

11.9

473.66

1.8

2.2

3.8

4.2

4.7

12.7

505.26

2.0

2.3

4.1

4.5

5.1

14.3

568.35

2.2

2.6

4.6

5.1

5.7

15.9

631.31

2.5

2.9

5.1

5.6

6.6

17.5

694.15

2.7

3.2

5.6

6.2

7.0

72"

1828.8

12.7

568.83

1.7

2.0

3.6

4.0

4.5

14.8

639.93

2.0

2.3

4.1

4.5

5.1

15.9

710.91

2.2

2.6

4.5

5.0

5.6

17.5

781.75

2.4

2.8

5.0

5.5

6.2

19.1

852.47

2.6

3.1

5.5

6.0

6.8

80"

2032

14.3

711.52

1.8

2.0

3.7

4.1

4.6

15.9

790.50

2.0

2.3

4.1

4.5

5.1

17.5

869.36

2.2

2.5

4.5

5.0

5.6

19.1

948.09

2.4

2.8

4.9

5.4

6.1

88"

2235.2

14.3

783.10

1.7

2.0

3.5

3.9

4.4

15.9

870.10

1.9

2.2

3.9

4.3

4.9

17.5

956.96

2.1

2.4

4.3

4.8

5.4

19.1

1043.70

2.3

2.6

4.7

5.2

5.8

95"

2413

15.9

939.89

1.8

2.0

3.6

4.0

4.5

17.5

1033.78

2.0

2.2

4.0

4.4

5.0

19.1

1127.54

2.2

2.4

4.4

4.8

5.4


Product Feature

Commonly used standards for Double-Sided Submerged Arc Welded Spiral Steel Pipe are generally divided into: SY/T5037-2018 (ministry standard, also known as spiral seam submerged arc welded steel pipes for ordinary fluid conveying pipelines), GB/T3091-2015, GB/T9711-2017 PSL1 PSL2 (national standard, also It is called oil and gas industry transmission steel pipe), API-5L (American Petroleum Institute, also called pipeline steel pipe; it is divided into two levels: PSL1 and PSL2), SY/T5040-2018 (spiral seam submerged arc welded steel pipe for piles).


Double-Sided Submerged Arc Welded Spiral Steel Pipe production process is described as follows:

Spiral steel pipe production process: It is a spiral seam steel pipe made of strip steel and coiled plate as raw materials, extruded at regular temperature, and welded by automatic double-wire double-sided submerged arc welding process.

 

1.Raw materials, namely strip steel coils, coils, welding wires, and fluxes, must undergo strict physical and chemical tests before being put into use.

 

2.The head-to-tail butt joint of strip steel adopts single-wire or double-wire submerged arc welding, and automatic submerged arc welding is used for repair welding after being rolled into steel pipes.

 

3.Before forming, the strip steel is leveled, trimmed, planed, surface cleaned, transported and pre-bent.

 

4.The Double-Sided Submerged Arc Welded Spiral Steel Pipe uses an electric contact pressure gauge to control the pressure of the oil cylinder on both sides of the conveyor to ensure the smooth conveying of the strip.

 

5.Adopt external control or internal control roll forming.

 

6.The weld gap control device is used to ensure that the weld gap meets the welding requirements, and the pipe diameter, misalignment and weld gap are strictly controlled.

 

7.Both internal and external welding adopt American Lincoln electric welding machine for single-wire or double-wire submerged arc welding, so as to obtain stable welding specifications.

 

8.All welded seams are inspected by online continuous ultrasonic automatic flaw detector, which ensures 100% coverage of non-destructive testing of spiral welds. If there is a defect, it will automatically alarm and spray the mark, and the production workers can adjust the process parameters at any time according to this to eliminate the defect in time.

 

9.Use air plasma cutting machine to cut the steel pipe into single pieces.

 

10.After cutting into single steel pipes, the first three steel pipes of each batch must undergo a strict first-inspection system to check the mechanical properties, chemical composition, fusion status of the welds, surface quality of the steel pipes, and non-destructive testing to ensure that the pipe-making process is qualified. After that, it can be officially put into production.

 

11.The part with continuous ultrasonic flaw detection mark on the weld seam shall undergo manual ultrasonic and X-ray re-examination. If there is a defect, after repair, it shall undergo non-destructive inspection again until it is confirmed that the defect has been eliminated.

 

12.The tubes where the butt welds of strip steel and coiled plates intersect with the spiral welds are all inspected by X-ray TV or film.

 

13.Each steel pipe has passed the hydrostatic pressure test, and the pressure is radially sealed. The test pressure and time are strictly controlled by the steel pipe water pressure microcomputer detection device, and the test parameters are automatically printed and recorded.

 

14.The pipe end is mechanically processed to accurately control the verticality of the end face, the bevel angle and the blunt edge.


The main inspection/control items of Double-Sided Submerged Arc Welded Spiral Steel Pipe include:

Dimensions: outer diameter of steel pipe, wall thickness, ellipticity, curvature, verticality of pipe end.

Length appearance quality: weld reinforcement, misalignment, steel pipe surface, delamination, inclusions, weld defect judgment.

Chemical composition: testing procedures such as welded joint tensile test, hydrostatic pressure test, acid etching test, non-destructive test, etc.


Product Application

Double-Sided Submerged Arc Welded Spiral Steel Pipe have been widely used in long-distance oil and gas pipeline projects such as the West-East Gas Transmission Project in my country, and are the main pipe materials used in long-distance oil and gas pipeline projects in my country. It is widely used in natural gas, petroleum, chemical industry, electric power, heat, water supply and drainage, steam heating, pressure steel pipes for hydropower stations, thermal power generation, construction, shipbuilding, machinery manufacturing, boiler manufacturing, water sources and other long-distance transmission pipelines and piling, dredging, Engineering fields such as bridges and steel structures.


Product Details




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