Timothy A. Philpot - Mechanics of materials _ an integrated learning system-John Wiley (2017)

x–
X
Y
ttf
f
X
t w
d
Y
b f
American Standard channels or c Shapes—U.S. customary Units
Designation
Area
A
Depth
d
Web
thickness
t w
Flange
width
b f
Flange
thickness
t f
Centroid
x _ I x S x r x I y S y r y
in. 2 in. in. in. in. in. in. 4 in. 3 in. in. 4 in. 3 in.
C15 × 50
15 × 40
15 × 33.9
14.7
11.8
10.0
15
15
15
0.716
0.520
0.400
3.72
3.52
3.40
0.650
0.650
0.650
0.799
0.778
0.788
404
348
315
53.8
46.5
42.0
5.24
5.45
5.62
11.0
9.17
8.07
3.77
3.34
3.09
0.865
0.883
0.901
C12 × 30
12 × 25
12 × 20.7
8.81
7.34
6.08
12
12
12
0.510
0.387
0.282
3.17
3.05
2.94
0.501
0.501
0.501
0.674
0.674
0.698
162
144
129
27.0
24.0
21.5
4.29
4.43
4.61
5.12
4.45
3.86
2.05
1.87
1.72
0.762
0.779
0.797
C10 × 30
10 × 25
10 × 20
10 × 15.3
8.81
7.34
5.87
4.48
10
10
10
10
0.673
0.526
0.379
0.240
3.03
2.89
2.74
2.60
0.436
0.436
0.436
0.436
0.649
0.617
0.606
0.634
103
91.1
78.9
67.3
20.7
18.2
15.8
13.5
3.42
3.52
3.66
3.87
3.93
3.34
2.80
2.27
1.65
1.47
1.31
1.15
0.668
0.675
0.690
0.711
C9 × 20
9 × 15
9 × 13.4
5.87
4.41
3.94
9
9
9
0.448
0.285
0.233
2.65
2.49
2.43
0.413
0.413
0.413
0.583
0.586
0.601
60.9
51.0
47.8
13.5
11.3
10.6
3.22
3.40
3.49
2.41
1.91
1.75
1.17
1.01
0.954
0.640
0.659
0.666
C8 × 18.7
8 × 13.7
8 × 11.5
5.51
4.04
3.37
8
8
8
0.487
0.303
0.220
2.53
2.34
2.26
0.390
0.390
0.390
0.565
0.554
0.572
43.9
36.1
32.5
11.0
9.02
8.14
2.82
2.99
3.11
1.97
1.52
1.31
1.01
0.848
0.775
0.598
0.613
0.623
C7 × 14.7
7 × 12.2
7 × 9.8
4.33
3.6
2.87
7
7
7
0.419
0.314
0.210
2.30
2.19
2.09
0.366
0.366
0.366
0.532
0.525
0.541
27.2
24.2
21.2
7.78
6.92
6.07
2.51
2.60
2.72
1.37
1.16
0.957
0.772
0.696
0.617
0.561
0.568
0.578
C6 × 13
6 × 10.5
3.81
3.08
6
6
0.437
0.314
2.16
2.03
0.343
0.343
0.514
0.500
17.3
15.1
5.78
5.04
2.13
2.22
1.05
0.86
0.638
0.561
0.524
0.529
813