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OD 3-1/2' non-dig drill pipe
OD 3-1/2' non-dig drill pipe

Minimum Order: 0
Quality/Safety Certification: 0.00


we can provide OD 3-1/2' non-dig drill pipes which has strict requirements about torsion,tension,bending,friction and vibration.

Shijiazhuang Longway Petroleum Drill Tools CO,.LTD

 

The raw materials selected by our company are all the alloy structure steels for geographical usage produced by Bao Steel plant. After testing, both ends of the tube are thickened directly without welding. Then come to the heat treatment process of the whole pipe and the chipping edges process. After that, the pipe will be painted with nickel phosphor that can increase the hardness of air tightness of the thread surface. Before the finished pipes are plated and packaged, a series of tests have to be completed, including hardness, metallurgical structure, physical performances, etc.

 

SIZE

Weight

Length

OD

Pipe Wall Thickness

Thickening Type

Grade

Min Bend Radius

Max Torque

inch

mm

ft

m

ft

m

in

mm

in

mm

 

 

m

Kn/m

2

50

56.2

25.5

10

3

1.986

50.8

0.256

6.5

IEU

S135

38

4.8

2-3/8

60

79.4

36

10

3

2.375

60.32

0.295

7.5

IEU

R780

42

6.5

S135

46

7

2-7/8

73

101.4

46

10

3

2.875

73.02

0.315

8.0

IEU

R780

65

13

3-1/2

89

220.4

100

15

4.5

3.5

88.9

0.394

9.99

IEU

R780

75

19

 

Otherwise we could supply the products according to your requirements.

 

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