Mechanics of Materials

Appendix E: Geometric Properties of Structural Steel Members

Table E.1: Wide-flange sections (FPS units)

Flange

z Axis

y Axis

Designation (in lb/ft)

Depth d (in)

Area A (in 2)

Web Thickness t w (in)

Width b F (in)

Thickness t F (in)

l zz (in 4)

S z (in 3)

r z (in)

l yy (in 4)

S y (in 3)

r y (in)

W12 35

12.50

10.3

0.300

6.560

0.520

285.0

45.6

5.25

24.5

7.47

1.54

W12 30

12.34

8.79

0.260

6.520

0.440

238

38.6

5.21

20.3

6.24

1.52

W10 30

10.47

8.84

0.300

5.81

0.510

170

32.4

4.38

16.7

5.75

1.37

W10 22

10.17

6.49

0.240

5.75

0.360

118

23.2

4.27

11.4

3.97

1.33

W8 18

8.14

5.26

0.230

5.250

0.330

61.9

15.2

3.43

7.97

3.04

1.23

W8 15

8.11

4.44

0.245

4.015

0.315

48

11.8

3.29

3.41

1.70

0.876

W6 20

6.20

5.87

0.260

6.020

0.365

41.4

13.4

2.66

13.3

4.41

1.50

W6 16

6.28

4.74

0.260

4.03

0.405

32.1

10.2

2.60

4.43

2.20

0.967

Table E.2: Wide-flange sections (metric units)

Flangez

Axis y

Axis

Designation (mm kg/m)

depth d (mm)

Area A (mm 2)

Web Thickness t w (mm)

Width b F (mm)

Thickness t F (mm)

l zz (10 6 mm 4)

S z (10 3

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