Thickness in ins.

d inside.

d outside.

d1 over flanges.

Area of cross section sq. in.

Least radius of gyration in ins.

3/16

A-3 5/8

4

6 1/16

3,8

1,45

1/4

4 1/8

6 3/16

4,8

1,50

5/16

4 1/4

6 5/16

5,8

1,55

3/8

4 3/8

6 7/16

6,8

1,59

1/4

B1 -4 13/16

5 5/16

8 1/16

6,4

1,92

5/16

5 7/16

8 1/8

7,8

1,96

3/8

5 9/16

8 1/4

9,2

2,02

7/16

5 11/16

8 3/4

10,6

2,07

1/2

5 13/16

8 7/16

12,0

2,11

9/16

5 15/16

8 1/2

13,4

2,16

5/8

6 1/16

8 5/8

14,8

2,20

1/4

B2- 5 15/16

6 7/16

9 1/8

7,4

2,34

5/16

6 9/16

9 1/4

9,0

2,39

3/8

6 11/16

9 5/16

10,6

2,43

7/16

6 13/16

9 3/8

12,2

2,48

1/2

6 15/16

9 1/2

13,8

2,52

9/16

7 1/16

9 5/8

15,4

2,57

5/8

7 3/1

9 11/16

17,0

2,61

1/4

C - 7 3/16

7 11/16

11 9/1

10,0

2,80

5/16

7 13/16

11 5/86

12,0

2,85

3/8

7 15/16

11 11/16

14,0

2,90

7/16

8 1/16

11 3/4

16,0

2,94

1/2

8 3/16

11 13/16

18,0

2,98

9/16

8 15/16

11 7/8

19,2

3,03

5/8

8 7/16

12

21,2

3,08

11/16

8 9/16

12 1/16

23,2

3,12

3/4

8 11/16

12 3/16

25,2

3,16

13/16

8 13/16

12 5/16

27,2

3,21

7/8

8 15/16

12 7/16

29,2

3,26

1

9 3/16

l2 9/16

33,2

3,34

1 1/8

9 7/16

12 3/4

37,2

3,43

1 1/4

9 11/16

12 15/16

41,2

3,52

Thickness in ins.

d inside.

d outside.

d1 over flanges.

Area of cross-section sq. in.

Least radius of gyration in ins.

1/4

E-11

11 1/2

15 7/16

16,8

4,18

5/16

11 5/8

15 9/16

19,2

4,23

3/8

11 3/8

15 11/16

21,6

4,28

7/16

11 7/8

15 13/16

24,0

4,32

1/2

12

15 7/8

26,4

4,36

9/16

12 1/8

16

28,8

4,40

5/8

12 1/4

16 1/16

31,8

4,45

11/16

12 3/8

16 3/16

34,8

4,50

3/4

12 1/2

16 5/16

37,8

4,55

13/16

12 5/8

16 7/16

40,8

4,60

7/8

12 3/8

16 5/8

43,8

4,64

1

13

16 3/4

49,8

4,73

1 1/8

13 1/4

17

55,8

4,82

1 1/4

13 1/2

17 3/16

61,8

4,91

5/16

G-14 3/8

15

19 1/8

24,0

5,45

3/8

15 1/4

19 1/4

28,0

5,50

7/16

15 1/4

19 3/8

32,0

5,55

1/2

15 3/8

19 7/16

36,0

5,59

9/16

15 1/2

19 1/2

40,0

5,63

5/8

15 5/8

19 5/8

44,0

5,68

11/16

15 3/4

19 3/4

48,0

5,72

3/4

15 7/8

19 7/8

52,0

5,77

13/16

16

20

56,0

5,82

7/8

16 1/2

20 1/8

60,0

5,87

1

16 3/8

20 3/8

68,0

5,95

1 1/8

16 5/8

20 5/8

76,0

6,04

1 1/4

16 7/8

20 3/4

84,0

6,14'

1 3/8

17 1/8

21

92,0

6,23