Table XIX. Properties Of Steel I Beams

Depth of Beam.

Weight per Foot.

An

Thickness of Web.

Width of Flange.

Moment Of Inertia. Neutral Axis square to Web at Center

Section Modulus,

Neutral Axis as Before

Radius of Gyration.

Neutral Axis as Before

Inches.

Moment of Inertia.

Neutral Axis Coincident With Center

Line of Web.

Radius of Gyration.

Neutral Axis as Before

Inches

In.

Lb

Sq. In.

In.

In.

I.

Q

R.

T.

R'.

20

90

26.4

.78

6.75

1506.10

150.60

7.55

42.30

1.27

20

80

23.5

.69

6.88

1345.10

134.50

7.55

33.20

1.19

20

75

22.1

.66

6.16

1216.90

124.70

7.53

28.20

1.13

20

65

19.1

.50

6.00

1148.60

114.90

7.76

25.50

1.16

15

75

22.1

.81

6.29

720.40

96.00

5.72

34.60

1.25

15

66|

19.7

.65

6.13

676.30

90.10

5.87

31.70

1.27

15

60

17.6

.52

6.00

637.70

85.00

6.02

29.20

1.29

15

50

11.7

.45

5.75

629.70

70.60

6.00

21.00

1.20

15

12

12.4

.40

5.50

429.60

57.80

6.90

14.00

1.08

12

55

16.1

.63

6.00

358.10

69.70

4.72

25.20

1.25

12

40

11.8

.39

5.50

281.30

46.90

4.90

16.80

1.20

12

311

9.3

.35

6.18

220.50

36.70

4.88

10.30

1.04

10

40

l1.8

.58

5.21

178.50

35.70

3.89

13.50

1.07

10

33

9.7

.37

5.00

161.30

32.30

4.08

11.80

1.10

10

30

8.8

.45

4.89

134.50

26.90

8,90

8.10

0.96

10

25

7.3

.31

4.75

122.50

24.50

4.06

7.30

0.99

9

27

7.9

.31

4.76

110.60

24.60

3.72

9.10

1.07

9

23 1/3

6.9

.35

168

89.00

19.80

3.60

5.90

0.98

9

21

6.2

.27

4.50

84.30

18.70

3.70

5.56

0.96

8

7.9

.48

4.66

77.60

19.40

3.14

6.91

0.93

8

22

6.4

.29

4.38

69.70

17.40

3.30

6.02

0.97

8

18

5.2

.25

4.13

56.80

14.20

3.30

3.95

0.87

7

20

5.7

.28

4.09

47.60

13.60

2.89

4.86

0.92

7

15

4.4

.23

3.88

37.10

10.60

2.89

3.12

0.84

6

15

4.3

.25

3.52

26.40

8.81

2.47

2.74

0.79

6

12

8.6

.22

3.38

21.70

7.25

2.06

1.91

0.73

5

13

8.8

.26

3.13

16.70

6.28

2.06

1.98

0.72

5

9 3/4

2.9

.21

8.00

12.10

4.87

2.06

1.29

0.67

4

10

2.9

.39

2.69

6.84

3.42

1.53

0.89

0.55

4

7 1/2

2.2

.20

2.50

5.86

2.93

1.68

0.70

0.66

4

6

1.8

.18

2.19

4.59

2.30

1.61

0.38

0.47