Specifications of Black Welded Pipe 

Outside Diameter
inch

Wall Thickness
mm

Length
mm

1/2"

0.7-3.0

below 5850mm for 20' GP  
above 5850mm for 40' GP/HQ

3/4"

0.7-3.0

1"

0.7-3.5

1.2"

0.7-3.5

1.5"

0.7-4.0

2"

0.7-4.0

2.5"

0.7-4.0

3"

0.7-5.0

4"

0.9-6.0

5"

1.2-6.0

6"

1.2-8.0

8"

2.0-8.0

10"

2.0-8.0

12"

2.0-8.0

14"

3.0-8.0

16"

3.0-8.0

Special OD of Black Welded Pipe for Thick Wall thickness

Outside Diameter
mm

Wall Thickness
mm

Length
mm

26.9

1.1-3.0

below 5850mm for 20' GP  
above 5850mm for 40' GP/HQ

50

1.1-4.0

102

1.2-5.0

108

1.2-6.0

133

1.2-6.0

159

1.2-8.0

168

2.0-8.0

180

2.0-8.0

194

2.0-8.0

Special OD for Thin Wall thickness

Φ10

Φ11.8

Φ13

Φ14

Φ15

Φ16

Φ17.5

Φ18

Φ19

Φ20

Φ21

Φ22

Φ23

Φ24

Φ25

Φ26

Φ27

Φ27.5

Φ28

Φ28.6

Φ29

Φ30

Φ31

Φ32

Φ33.5

Φ34

Φ35

Φ36

Φ37

Φ38

Φ40

Φ42

Φ43

Φ44

Φ45

Φ47

Φ48

Φ49

Φ50

Φ50.8

Φ54

Φ57

Φ58

Φ60

Φ63

Φ65

Φ68

Φ69

Φ70

Φ73

Φ75

Φ76

Φ80

Φ85

Φ88

Φ100