API 7-1 Drill Pipe

Drill PipeTiptop has full production process to perform pipe end upsetting, heat treatment, friction welding and threading. Our production capacity of drill pipe with API Standard, Non API Standard an

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Drill Pipe

Tiptop has full production process to perform pipe end upsetting, heat treatment, friction welding and threading. Our production capacity of drill pipe with API Standard, Non API Standard and special connections is about 20,000MT per year.

Green Pipe

Seamless green pipe is made from high grade chrome-molybdenum steel. Ends of pipes are upset twice with smooth to reduce damage to property of pipe body. Our drill pipe product has good fatigue endurance performance and long working life.

Key Process Control

Friction Welding

We have two sets of heavy duty friction welders. These two welders can optimize parameter of welding by automatic memory of previous parameters to improve the quality of welding lines.

Heat Treatment

Our induction machine can automatically adjust temperature, heating time, wind cooling time in order to have a better mechanical property and stable metallography in weld zone.

Quality Inspection

All the data of procedure of inspection and final inspection are recorded by ERP online to ensure the traceability. 100% of samples are tested through visual inspection, hardness testing, magnetic particle inspection and ultrasonic inspection to ensure the quality of each batch of drill pipe.

Steel Grade: E75, X95, G105, S135

Size: 2 3/8’’~6 5/8’’

Internal Coating: TK34, TC2000, TC3000

Hardbanding: ARNCO 100XT, 200XT & 300XT, BOTN3000, ARMACOR M

Length: R1 5.49-6.72m, R2: 8.23-9.14m, R3: 11.58-13.72m, and short drill pipes

API Drill Pipe and Tool Joint

Available Sizes & Grades

Size

Weight Designation

Calculated Plain-End Weight

OD

WT

Grade

Type of Upset

in

lb/ft

lb/ft

kg/m

in

mm

in

mm

IU

EU

IEU

2 3/8

6.65

6.27

9.33

2.375

60.3

0.280

7.11

E, X, G, S

-

-

2 7/8

10.40

9.72

14.47

2.875

73.0

0.362

9.19

E, X, G, S

-

3 1/2

9.50

8.81

13.12

3.500

88.9

0.254

6.45

E

-

13.30

12.32

18.34

3.500

88.9

0.368

9.35

E, X, G, S

-

15.50

14.64

21.79

3.500

88.9

0.449

11.40

E

-

15.50

14.64

21.79

3.500

88.9

0.449

11.40

X, G, S

-

4

14.00

12.95

19.27

4.000

101.6

0.330

8.38

E, X, G, S

-

4 1/2

13.75

12.25

18.23

4.500

114.3

0.271

6.88

E

-

16.60

15.00

22.32

4.500

114.3

0.337

8.56

E, X, G, S

-

20.00

18.71

27.84

4.500

114.3

0.430

10.92

E, X, G, S

-

5

16.25

14.88

22.16

5.000

127.0

0.296

7.52

X, G, S

-

-

19.50

17.95

26.70

5.000

127.0

0.362

9.19

E

-

-

19.50

17.95

26.70

5.000

127.0

0.362

9.19

X, G, S

-

25.60

24.05

35.80

5.000

127.0

0.500

12.70

E

-

-

25.60

24.05

35.80

5.000

127.0

0.500

12.70

X, G, S

-

5 1/2

21.90

19.83

29.52

5.500

139.7

0.361

9.17

E, X, G, S

-

-

24.70

22.56

33.57

5.500

139.7

0.415

10.54

E, X, G, S

-

-

6 5/8

25.20

22.21

33.04

6.625

168.3

0.330

8.38

E, X, G, S

-

-

27.72

24.24

36.06

6.625

168.3

0.362

9.19

E, X, G, S

-

-

○: For All Grades; ▲: For Grades X, G, S




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Drill Pipe

Tool Joint

OD

WT

ID

Upset End

Grade

Connection

OD of Pin and Box (D)

ID of Pin (d)

Total Length Tool Joint Pin (Lp)

Pin Tong space (Lpb)

Box Tong Space (Lb)

combined Length of Pin and Box (L)

Dia. Of Elevator Upset (DPE/DTE)

in

Weight Designation

in

in

in

mm

in

mm

in

in

in

in

in

2 3/8

6.65

0.280

1.815

EU

E75

NC26
2 3/8 IF

3 3/8

85.7

1 3/4

44.5

10

7

8

15

2  9/16

X95

3 3/8

85.7

1 3/4

44.5

10

7

8

15

2  9/16

G105

3 3/8

85.7

1 3/4

44.5

10

7

8

15

2  9/16

S135

3 3/8

85.7

1 3/4

44.5

10

7

8

15

2  9/16

2 7/8

10.40

0.362

2.151

EU

E75

NC31
2 7/8 IF

4 1/8

104.8

2 1/8

54

10 1/2

7

9

16

3  3/16

X95

4 1/8

104.8

2

50.8

10 1/2

7

9

16

3  3/16

G105

4 1/8

104.8

2

50.8

10 1/2

7

9

16

3  3/16

S135

4 3/8

111.1

1 5/8

41.3

10 1/2

7

9

16

3  3/16

3 1/2

9.50

0.254

2.992

EU

E75

NC38

4 3/4

120.7

2 11/16

68.3

11 1/2

8

10 1/2

18 1/2

3 7/8

3 1/2

13.30

0.368

2.764

EU

E75

NC38
3 1/2IF

4 3/4

120.7

2 11/16

68.3

12

8

10 1/2

18 1/2

3 7/8

X95

5

127.0

2  9/16

65.1

12

8

10 1/2

18 1/2

3 7/8

G105

5

127.0

2  7/16

61.9

12

8

10 1/2

18 1/2

3 7/8

S135

5

127.0

2 1/8

54.0

12

8

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