Table XIII. Properties Of Steel Channels

Neutral Axis

Perpendicular to

Web at Center.

Neutral Axis

Parallel to Back of Channel.

Depth of Channel.

Weight per Foot.

Area.

Thickness of Web.

Width of Flange.

Moment of Inertia*.

Section Modulus.

Radius of Gyration. Inches.

Moment of Inertia.

Radius of Gyration. Inches.

Center of Gravity From Back.

In.

Lb.

Sq.In.

In.

In.

I.

Q.

R.

I'.

R'.

In.

15

50

14.71

.72

3.72

402.70

53.70

5.23

11.220

.87

.80

15

40

11.80

.47

3.63

371.60

49.50

5.62

11.500

.99

.89

15

33

9.70

.40

3.38

304.20

40.50

5.64

7.900

.92

.79

12

40

11.76

.76

3.42

197.00

82.80

4.09

6.630

.75

.72

12

27

7.90

.38

3.13

161.00

26.80

4.54

5.730

.86

.78

12

20

5.90

.28

2.88

124.70

20.80

4.59

3.690

.79

.69

10

30

8.82

.68

3.04

103.20

20.60

3.42

3.990

.67

.65

10

20

5.90

.31

2.88

85.50

17.10

3.81

3.750

.80

.71

10

15

4.40

.25

2.60

66.82

13.40

3.89

2.490

.74

.66

9

16.

4.70

.28

2.56

57.09

12.70

3.48

2.590

.74

.66

9

13

3.80

.23

2.36

45.48

10.10

3.46

1.640

.64

.57

8

13

3.80

.25

2.22

35.56

8.89

8.07

1.470

.62

.58

8

10

3.00

.20

2.08

28.20

7.05

8.08

1.000

.58

.52

7

13

3.80

.28

2.22

27.85

7.81

2.69

1.890

.71

.62

7

9

2.61

.20

2.00

19.05

5.43

2.70

.814

.56

.51

6

17

4.85

.38

2.41

25.43

8.48

2.28

2.390

.70

.78

6

12

3.48

.28

2.19

18.70

6.23

2.32

1.380

.63

.65

6

8

2.35

.20

1.94

12.75

4.25

2.33

.710

.55

.52

5

9

2.59

.25

1.91

9.67

3.87

1.93

.810

.55

.57

5

6

1.76

.18

1.66

6.53

2.61

1.93

.390

.47

.45

4

8

2.31

.27

1.86

5.47

2.73

1.54

.685

.55

.59

4

5

1.46

.17

1.59

3.59

1.80

1.57

.293

.45

.46

3

6

1.76

.36

1.60

2.10

1.40

1.08

.310

.42

.46

8

5

1.47

1.50

1.80

1.20

1.12

.250

.11

.44

3

4

1.19

.17

1.41

1.60

1.10

1.17

.200

.11

.44