Nominal  diameter

Outer diameter

Central  pipe

Thickened pipe

m

m

Nominal  size (

Allowed deviation

Wall  thickness

Theoretical weight kg/m

Wall thickness

Theoretical

Weight kg/m

Nominal size

Allowed deviation

%

Nominal size (

Allowed  deviation

%

6

1/8

10.0

+/_0.50mm

2

+/-12

-15

0.39

2.50

+/-12

-15

0.46

8

1/4

13.5

2.25

0.62

2.75

0.73

10

3/8

17.0

2.25

0.82

2.75

0.97

15

1/2

21.3

2.75

1.26

3.25

1.45

20

3/4

26.8

2.75

1.63

3.50

2.01

25

1

33.5

3.25

2042

4.00

2.97

32

11/4

42.3

3.25

3.13

4.00

3.78

40

11/2

48.0

+/-1%

3.5

3.84

4.25

4.58

50

2

60.0

3.5

4.88

4.50

6.16

65

21/2

75.5

3.75

6.64

4.50

7.88

80

3

88.5

4.00

8.34

4.75

9.81

100

4

114.0

4.00

10.85

5.50

13.44

125

5

140.0

4.00

13.42

5.50

18.24

150.

6

165

4.00

17.81

5.50

21.63