inch

mm

mm

MPa

psi

MPa

psi

mm

kg/m

metres

3

1/8

3.3

8.5

17.2

2500

68.9

10000

13

0.037

50-100

5

3/16

4.8

10.8

20.7

3000

82.7

12000

20

0.068

50-100

6

1/4

6.4

13.0

20.7

3000

82.7

12000

33

0.085

50-100

8

5/16

7.9

15.1

17.2

2500

68.9

10000

46

0.103

50-100

10

3/8

9.5

17.0

15.5

2250

62.1

9000

51

0.141

50-100

13

1/2

12.7

20.7

13.8

2000

55.2

8000

76

0.210

50-100

19

3/4

19.0

27.1

8.6

1250

34.5

5000

127

0.287

50-100

25

1

25.4

34

6.9

1000

27.6

4000

203

0.542

50-100