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 You are here  >> All Pictures >> Tubulars and Down Hole Tools >> Heavy Weight Drill Pipe
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

Integral Heavy Weight Dirll Pipe Spec 

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

3 5/8

5 1/2 FH

6

5 11/16

3 5/8

24

55

760

38,000

6 5/8

30 5

8~8 1/4

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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