drill pipe drill striing

lb/ft

kg/m

in

mm

in

mm

2 3/8

6.65

6.27

9.33

2.375

60.3

0.28

7.11

E,X,G,S

Ext. Upset

2 7/8

10.4

9.72

14.47

2.875

73

0.362

9.19

E,X,G,S

Int. Upset or Ext. Upset

3 1/2

9.5

8.81

13.12

3.5

88.9

0.254

6.45

E

Int. Upset or Ext. Upset

3 1/2

13.3

12.32

18.34

3.5

88.9

0.368

9.35

E,X,G,S

Int. Upset or Ext. Upset

3 1/2

15.5

14.64

21.79

3.5

88.9

0.449

11.4

E

Int. Upset or Ext. Upset

3 1/2

15.5

14.64

21.79

3.5

88.9

0.449

11.4

X,G,S

Ext. Upset or Int.-Ext. Upset

4   

14

12.95

19.27

4

101.6

0.33

8.38

E,X,G,S

Int. Upset or Ext. Upset

4 1/2

13.75

12.95

18.23

4.5

114.3

0.271

6.88

E

Int. Upset or Ext. Upset

4 1/2

16.6

15

22.32

4.5

114.3

0.337

8.56

E,X,G,S

Ext. Upset or Int.-Ext. Upset

4 1/2

20

18.71

27.84

4.5

114.3

0.43

10.92

E,X,G,S

Ext. Upset or Int.-Ext. Upset

5   

16.25

14.88

22.16

5

127

0.296

7.52

X,G,S

Int. Upset

5   

19.5

17.95

26.7

5

127

0.362

9.19

E

Int.-Ext. Upset

5   

19.5

17.95

26.7

5

127

0.362

9.19

X,G,S

Ext. Upset or Int.-Ext. Upset

5   

25.6

24.05

35.8

5

127

0.5

12.7

E

Int.-Ext. Upset

5   

25.6

24.05

35.8

5

127

0.5

12.7

X,G,S

Ext. Upset or Int.-Ext. Upset

5 1/2

21.9

19.83

29.52

5.5

139.7

0.361

9.17

E,X,G,S

Int.-Ext. Upset

5 1/2

24.7

22.56

33.57

5.5

139.7

0.415

10.54

E,X,G,S

Int.-Ext. Upset

6 5/8

25.2

22.21

33.04

6.625

168.3

0.33

8.38

E,X,G,S

Int.-Ext. Upset

6 5/8

27.72

24.24

36.06

6.625

168.3

0.362

9.19

E,X,G,S

Int.-Ext. Upset