호칭

외경

mm

두께

mm

단위중량

kg/m

단면적

㎠

A

B

15

½

21.7

2.0

0.972

1.238

20

¾

27.2

2.0

2.3

1.24

1.41

1.583

1.799

25

1

34.0

2.3

1.80

2.291

32

1¼

42.7

2.3

2.8

2.29

2.76

2.919

3.510

40

1½

48.6

2.3

2.8

3.2

2.63

3.16

3.58

3.345

4.029

4.564

50

2

60.5

2.3

3.2

4.0

3.30

4.52

5.57

4.205

5.760

7.100

65

2½

76.3

2.8

3.2

4.0

2.08

5.77

7.13

6.465

7.349

9.085

80

3

89.1

2.8

3.2

4.0

5.96

6.78

8.39

7.591

8.636

10.690

90

3½

101.6

3.2

4.0

5.0

7.76

9.63

11.9

9.892

12.26

15.17

100

4

114.3

3.2

3.6

4.5

5.6

8.77

9.83

12.2

15.0

11.17

12.52

15.52

19.12

125

5

139.8

3.6

4.0

4.5

6.0

12.1

13.4

15.0

19.8

15.40

17.07

19.13

25.22

150

6

165.2

4.5

5.0

6.0

7.0

17.8

19.8

23.6

27.3

22.72

25.16

30.01

34.79

175

7

190.7

4.5

5.0

6.0

7.0

20.7

22.9

27.3

31.7

26.32

29.17

34.82

40.40

200

8

216.3

4.5

6.0

7.0

8.0

23.5

31.1

36.1

41.1

29.94

39.61

46.03

52.35

250

10

267.4

6.0

7.0

8.0

9.0

38.7

45.0

51.2

57.4

49.27

57.27

65.19

73.06

300

12

318.5

6.0

7.0

8.0

9.0

46.2

53.8

61.3

68.7

58.91

68.50

78.04

87.51