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

x–
X
Y
ttf
f
X
t w
d
Y
American Standard channels or c Shapes—SI Units
b f
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
mm 2 mm mm mm mm mm
10 6
mm 4 10 3
mm 3
mm
10 6
mm 4 10 3
mm 3
mm
C380 × 74
380 × 60
380 × 50.4
9480
7610
6450
381
381
381
18.2
13.2
10.2
94.5
89.4
86.4
16.5
16.5
16.5
20.3
19.8
20.0
168
145
131
882
762
688
133
138
143
4.58
3.82
3.36
61.8
54.7
50.6
22.0
22.4
22.9
C310 × 45
310 × 37
310 × 30.8
5680
4740
3920
305
305
305
13.0
9.83
7.16
80.5
77.5
74.7
12.7
12.7
12.7
17.1
17.1
17.7
67.4
59.9
53.7
442
393
352
109
113
117
2.13
1.85
1.61
33.6
30.6
28.2
19.4
19.8
20.2
C250 × 45
250 × 37
250 × 30
250 × 22.8
5680
4740
3790
2890
254
254
254
254
17.1
13.4
9.63
6.10
77.0
73.4
69.6
66.0
11.1
11.1
11.1
11.1
16.5
15.7
15.4
16.1
42.9
37.9
32.8
28.0
339
298
259
221
86.9
89.4
93.0
98.3
1.64
1.39
1.17
0.945
27.0
24.1
21.5
18.8
17.0
17.1
17.5
18.1
C230 × 30
230 × 22
230 × 19.9
3790
2850
2540
229
229
229
11.4
7.24
5.92
67.3
63.2
61.7
10.5
10.5
10.5
14.8
14.9
15.3
25.3
21.2
19.9
221
185
174
81.8
86.4
88.6
1.00
0.795
0.728
19.2
16.6
15.6
16.3
16.7
16.9
C200 × 27.9
200 × 20.5
200 × 17.1
3550
2610
2170
203
203
203
12.4
7.70
5.59
64.3
59.4
57.4
9.91
9.91
9.91
14.4
14.1
14.5
18.3
15.0
13.5
180
148
133
71.6
75.9
79.0
0.820
0.633
0.545
16.6
13.9
12.7
15.2
15.6
15.8
C180 × 22
180 × 18.2
180 × 14.6
2790
2320
1850
178
178
178
10.6
7.98
5.33
58.4
55.6
53.1
9.30
9.30
9.30
13.5
13.3
13.7
11.3
10.1
8.82
127
113
100
63.8
66.0
69.1
0.570
0.483
0.398
12.7
11.4
10.1
14.2
14.4
14.7
C150 × 19.3
150 × 15.6
2460
1990
152
152
11.1
7.98
54.9
51.6
8.71
8.71
13.1
12.7
7.20
6.29
94.7
82.6
54.1
56.4
0.437
0.358
10.5
9.19
13.3
13.4
814