Size

Casing weight

Back pressure rating

in

mm

Ib/ft

mm

MPa

4 1/2

114.3

9.50-15.10

5.21-8.56

35

5

127.0

13.00-21.40

6.43-11.10

35

5 1/2

139.7

14.00-26.80

6.20-12.70

35

6 5/8

168.3

20.00-32.00

7.32-12.06

35

7

177.8

20.00-38.00

6.91-13.72

35

7 5/8

193.7

26.40-47.10

8.33-15.68

35

8 5/8

219.1

24.00-49.00

6.71-14.15

35

9 5/8

244.5

32.30-58.40

7.92-15.11

35

10 3/4

273.1

32.75-73.2

7.09-17.07

35

11 3/4

298.5

42.00-71.00

8.46-14.78

35

13 3/8

339.7

48.00-72.00

8.38-13.06

28

16

406.4

65.00-109.00

9.52-16.66

21

18 5/8

473.1

87.50

11.05

14

20

508.0

94.00-133.00

11.13-16.13

14