Три-закатки труб большого диаметра
Данное место:Главная страницаОбслуживание продукцииТри-закатки труб большого диаметра

 

Unidad de producción
The production line adopts three-roller/four-roller bending machine for forming. For the formed short pipe section, tack welding is firstly carried out by CO2 shielded arc welding, heating treatment before welding, and then internal straight welding, external straight welding, internal girth welding, and external girth welding are conducted with single wire, multi-layer and multi-pass welding. After completion of welding, the weld seam is heat preserved to reduce the weld residual stress and increase the property of stress corrosion resistance of metal. The characteristic of the production line is the wall thickness and diameter of product is large, which can be widely used for structural pipe, such as steel structural bridge, high-voltage transmission tower, sea and land wind tower, offshore platform equipment and super-long pipe piles etc.

 

Especificaciones del Producto 
Diámetro:Φ610mm-Φ7000mm(24"-276")
Espesor de pared: 8mm-230mm(3/10"-9")
Estándar: API、DNV、ISO、DEP、EN、ASTM、DIN、BS、GB、CSA
Longitud: 3m-100m(10'-328')
Material:API 5L A-X90, GB/T9711 L190-L625

Especificaciones del producto

Diámetro

Espesor de pared(mm)

The Maximum Rolling Width

(mm)

Límite elástico mínimo(Mpa)

In.

mm

245(B)

290(X42)

360(X52)

415(X60)

450(X65)

485(X70)

555(X80)

625(X90)

690(X100)

8mm ≤ W.T.< 25mm, 
The Max. Rolling 
Width 3000mm; 
25mm ≤W.T.< 60mm, 
The Max. Rolling 
Width 4000mm;
W.T.≥ 60mm, 
The Max. Rolling 
Width 3000mm.

24.0 

610

8-23.2

8-21.3

8-19.1

8-17.8

8-17.1

8-16.5

8-15.4

8-14.5

8-13.8

26.0 

660

8-23.5

8-21.6

8-19.4

8-18.1

8-17.3

8-16.7

8-15.6

8-14.7

8-14.0

28.0 

711

8-23.8

8-21.9

8-19.6

8-18.3

8-17.6

8-16.9

8-15.8

8-14.9

8-14.2

30.0 

762

8-24.1

8-22.1

8-19.9

8-18.5

8-17.8

8-17.1

8-16.0

8-15.1

8-14.3

32.0 

813

8-24.3

8-22.3

8-20.0

8-18.7

8-17.9

8-17.3

8-16.1

8-15.2

8-14.5

34.0 

864

8-24.5

8-22.5

8-20.2

8-18.8

8-18.1

8-17.4

8-16.3

8-15.3

8-14.6

36.0 

914

8-24.7

8-22.7

8-20.4

8-19.0

8-18.2

8-17.6

8-16.4

8-15.5

8-14.7

38.0 

965

8-24.9

8-22.9

8-20.5

8-19.1

8-18.4

8-17.7

8-16.5

8-15.6

8-14.8

39.4 

1000

8-25.0

8-23.0

8-20.6

8-19.2

8-18.4

8-17.8

8-16.6

8-15.7

8-14.9

43.3 

1100

8-25.3

8-23.2

8-20.9

8-19.4

8-18.7

8-18.0

8-16.8

8-15.8

8-15.1

47.2 

1200

8-50.0

8-50.0

8-50.0

8-50.0

8-50.0

8-50.0

8-50.0

8-47.1

8-44.9

51.2 

1300

8-50.0

8-50.0

8-50.0

8-50.0

8-50.0

8-50.0

8-50.0

8-50.0

8-50.0

55.1 

1400

8-120.0

8-109.3

8-96.7

8-89.1

8-84.9

8-81.2

8-74.8

8-69.4

8-65.1

59.1 

1500

8-122.7

8-111.7

8-98.9

8-91.0

8-86.8

8-83.0

8-76.4

8-71.0

8-66.6

63.0 

1600

8-122.9

8-112.0

8-99.1

8-91.2

8-87.0

8-83.2

8-76.6

8-71.1

8-66.7

66.9 

1700

8-123.2

8-112.2

8-99.3

8-91.4

8-87.2

8-83.3

8-76.8

8-71.3

8-66.9

70.9 

1800

8-123.4

8-112.4

8-110.0

8-110.0

8-110.0

8-110.0

8-110.0

8-110.0

8-110.0

74.8 

1900

8-160.0

8-160.0

8-160.0

8-160.0

8-160.0

8-160.0

8-148.2

8-137.5

8-129.1

78.7 

2000

8-210.0

8-210.0

8-191.9

8-176.7

8-168.5

8-161.1

8-148.4

8-137.8

8-129.3

82.7-275.6

2100-7000

8-230.0

8-217.3

8-192.2

8-177.0

8-168.8

8-161.4

8-148.6

8-138.0

8-129.5

 

 

© 1993-2018 GUANGZHOU PEARL RIVER PETROLEUM STEEL PIPE CO., LTD. Юе.ICP рег. №05091798