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| Heavy Weight Drill Pipe |
  The Heavy Weight Drill Pipe is made from one piece of AISI 4145H solid bar, fully heat-treated, all physical properties confirm with API Spec 7 Latest Editions
The wear-resistance hardbanding is standard on tool joints connections and central upset Hardbanding is made by an automatic machine after preheating the pipe and is followed by stress relieving
The Type of handbanding include Iron-Matrix powder alloy, Tungsten Carbide particle, and Arnco 100XT
Standard Bands:
one 4" wear band on both pin and box ends, plus one 1" band on 18 degree shoulder of box
Two 3" wear bands on central upsets
The hardbanding is completing flush on both joints and 1/8" oversize on the central upset (full flush on request)
Internal Coating: The HWDP could be internally coated with DPC (Equivalent to TK34) as customers request which are able to prevent corrosion and extend life
Order Instruction:
Nominal Size
Range
Hardbanding type
Internal coating if required
Extra-long tool joints if required
API Stress relief recess
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Integral Heavy Weight Dirll Pipe Spec
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|
Nom Size (in)
|
Approx Overall Length (ft)
|
Tool Joints
|
Tube
|
Approx Weight
|
Make-up Torque (lb-ft)
|
|
OD (in)
|
ID (in)
|
Conn
|
Center upset OD (in)
|
Center upsets end (in)
|
ID (in)
|
Center upset length (in)
|
lb/ft
|
kg /jts
|
|
3 1/2
|
30 5
|
4 3/4
|
2 1/16
|
3 1/2IF
|
4
|
3 5/8
|
2 1/16
|
24
|
25 3
|
350
|
11,500
|
|
4
|
30 5
|
5 1/4
|
2 1/2
|
4 FH
|
4 1/2
|
4 1/8
|
2 1/2
|
24
|
29 5
|
410
|
17,300
|
|
4 1/2
|
30 5
|
6 1/4
|
2 13/16
|
4IF
|
5
|
4 5/8
|
2 13/16
|
24
|
41
|
565
|
25,500
|
|
5
|
30 5
|
6 1/2~6 5/8
|
3
|
4 1/2IF
|
5 1/2
|
5 1/8
|
3
|
24
|
49 3
|
681
|
34,000
|
|
5 1/2
|
30 5
|
7~7 1/4
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3 5/8
|
5 1/2 FH
|
6
|
5 11/16
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3 5/8
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24
|
55
|
760
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38,000
|
|
6 5/8
|
30 5
|
8~8 1/4
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4
|
6 5/8 FH
|
7 1/4
|
6 3/4
|
4
|
24
|
70
|
970
|
55,800
|
|
Integral Spiraled Heavy Weight Drill Pipe
|
|
Nom
Size
(in)
|
Approx
Overall
Length (ft)
|
Tool Joints
|
Tube
|
Approx Weight
|
Make-up
Torque
(lb-ft)
|
|
OD (in)
|
ID (in)
|
Conn
|
Center upset OD (in)
|
Center upsets end (in)
|
ID (in)
|
Center upset length (in)
|
lb/ft
|
kg /jts
|
|
3 1/2
|
30 5
|
4 3/4
|
2 1/16
|
3 1/2IF
|
4
|
3 5/8
|
2 1/16
|
18 5
|
28
|
387
|
11,500
|
|
4
|
30 5
|
5 1/4
|
2 1/2
|
4 FH
|
4 1/2
|
4 1/8
|
2 1/2
|
18 5
|
33
|
457
|
17,300
|
|
4 1/2
|
30 5
|
6 1/4
|
2 13/16
|
4IF
|
5
|
4 5/8
|
2 13/16
|
18 5
|
45
|
623
|
25,500
|
|
5
|
30 5
|
6 1/2~6 5/8
|
3
|
4 1/2IF
|
5 1/2
|
5 1/8
|
3
|
18 5
|
54
|
748
|
34,000
|
|
5 1/2
|
30 5
|
7~7 1/4
|
3 5/8
|
5 1/2 FH
|
6
|
5 11/16
|
3 5/8
|
18 5
|
62
|
858
|
38,000
|
|
6 5/8
|
30 5
|
8~8 1/4
|
4
|
6 5/8 FH
|
7 1/4
|
6 3/4
|
4
|
18 5
|
76
|
1052
|
55,800
|
|
|
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