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Drill pipes
Advanced friction welding production line of drill pipe
Advanced upsetting and thermal treatment line
800T upsetter to ensure the size of thickened pipe-end to meet API SPEC-5DP requirements.
Full length pipe heater, quenching unit and tempering stove to ensure the mechanical property of pipe body.
Automatic co-alignment unit with 6 rollers and hydraulic co-alignment for pipe body to ensure straightness and coaxial.
Standard sizes for drill pipes
|
Size
|
Weight Designation
|
Calculated Plain-End Weight
|
Outside Diameter
|
Wall Thickness
|
Grade
|
Upset Ends. For Weld-on Tools Joint
|
|
Lb/ft
|
Kg/m
|
In
|
Mm
|
In
|
Mm
|
|
2 3/8
|
6.65
|
6.27
|
9.33
|
2.375
|
60.3
|
0.280
|
7.11
|
E,X,G,S
|
EU
|
|
2 7/8
|
10.40
|
9.72
|
14.47
|
2.875
|
73.0
|
0.362
|
9.19
|
E,X,G,S
|
IU or EU
|
|
3 1/2
|
9.50
|
8.81
|
13.12
|
3.500
|
88.9
|
0.254
|
6.45
|
E
|
IU or EU
|
|
3 1/2
|
13.30
|
12.32
|
18.34
|
3.500
|
88.9
|
0.368
|
9.35
|
E,X,G,S
|
IU or EU
|
|
3 1/2
|
15.50
|
14.64
|
21.79
|
3.500
|
88.9
|
0.449
|
11.40
|
E
|
IU or EU
|
|
3 1/2
|
15.50
|
14.64
|
21.79
|
3.500
|
88.9
|
0.449
|
11.40
|
X,G,S
|
EU or IEU
|
|
4
|
14.00
|
12.95
|
19.27
|
4.000
|
101.6
|
0.330
|
8.38
|
E,X,G,S
|
IU or EU
|
|
4 1/2
|
13.75
|
12.25
|
18.23
|
4.500
|
114.3
|
0.271
|
6.88
|
E
|
IU or EU
|
|
4 1/2
|
16.60
|
15.00
|
22.32
|
4.500
|
114.3
|
0.337
|
8.56
|
E,X,G,S
|
EU or IEU
|
|
4 1/2
|
20.00
|
18.71
|
27.84
|
4.500
|
114.3
|
0.430
|
10.92
|
E,X,G,S
|
EU or IEU
|
|
5
|
16.25
|
14.88
|
22.16
|
5.000
|
127.0
|
0.296
|
7.52
|
X,G,S
|
IU
|
|
5
|
19.50
|
|
|
| |
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