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Specifications

The product is formed with high quality welded tube and advanced galvanization technology and equipment,The galvanization layer is equally galvanized and smooth finished.Both inside and outside surface are smooth,without black spot or bleb.It features high corrosion resistance and is widely used as wire tubing under the poor condition.

Black Steel Pipe and Hot dip Galvanized Steel Pipe（ASTM A53/A53M-1996）

Nominal Diameter(inch)

Outside Diameter(mm)

Wall thickness(mm)

Standard weight class

Overpressure resistant code

Class A test pressure(Mpa)

Weight(Black Tube)（kg/m）

1/2”

21.3

2.77

STD

40

4.83

1.27

3/4”

26.7

2.87

STD

40

4.83

1.69

1”

33.4

3.38

STD

40

4.83

2.50

11/4”

42.2

3.56

STD

40

8.27

3.39

11/2”

48.3

3.68

STD

40

8.27

4.05

2”

60.3

3.91

STD

40

15.86

5.44

21/2”

73

5.16

STD

40

17.24

8.63

3”

88.9

5.49

STD

40

15.31

11.29

4”

114.3

6.02

STD

40

13.10

16.07