Desig-
nation 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
nominal
weight

lb/ft
   
X
Shear
Center
Location
eo
PNA
Loca-
tion
Xp
Elastic Properties
Plastic Modulus
Axis X-X
Axix Y-Y
Zx
Zy
I
S
r
I
S
r
in. 
in. 
in. 
in.4
in.3
in. 
in.4
in.3
in. 
in.3
in.3
C15x50*
C15x40*
C15x33.9*
 *
C12x30*
C12x25*
C12x20.7*
 *
C10x30*
C10x25*
C10x20*
C10x15.3*
 *
C9x20*
C9x15*
C9x13.4*
 *
C8x18.75*
C8x13.75*
C8x11.5*
 *
C7x12.25*
C7x9.8*
 *
C6x13*
C6x10.5*
C6x8.2*
 *
C5x9*
C5x6.7*
 *
C4x7.25*
C4x5.4*
 *
C3x6*
C3x5*
C3x4.1*
 *
50
0.798
0.583
0.488
404
53.8
5.24
11.0
3.78
0.867
68.2
8.17
40
0.777
0.767
0.390
349
46.5
5.44
9.23
3.37
0.886
57.2
6.87
33.9
0.787
0.896
0.330
315
42.0
5.62
8.13
3.11
0.904
50.4
6.23
 
 
 
 
 
 
 
 
 
 
 
 
30
0.674
0.618
0.366
162
27.0
4.29
5.14
2.06
0.763
33.6
4.33
25
0.674
0.746
0.305
144
24.1
4.43
4.47
1.88
0.780
29.2
3.84
20.7
0.698
0.870
0.252
129
21.5
4.61
3.88
1.73
0.799
25.4
3.49
 
 
 
 
 
 
 
 
 
 
 
 
30
0.649
0.369
0.439
103
20.7
3.42
3.94
1.65
0.669
26.6
3.78
25
0.617
0.494
0.366
91.2
18.2
3.52
3.36
1.48
0.676
23.0
3.19
20
0.606
0.637
0.292
78.9
15.8
3.66
2.81
1.32
0.692
19.3
2.71
15.3
0.634
0.796
0.223
67.4
13.5
3.87
2.28
1.16
0.713
15.8
2.35
 
 
 
 
 
 
 
 
 
 
 
 
20
0.583
0.515
0.325
60.9
13.5
3.22
2.42
1.17
0.642
16.8
2.47
15
0.586
0.682
0.243
51.0
11.3
3.40
1.93
1.01
0.661
13.5
2.05
13.4
0.601
0.743
0.217
47.9
10.6
3.48
1.76
0.962
0.669
12.5
1.95
 
 
 
 
 
 
 
 
 
 
 
 
18.75
0.565
0.431
0.343
44.0
11.0
2.82
1.98
1.01
0.599
13.8
2.17
13.75
0.553
0.604
0.251
36.1
9.03
2.99
1.53
0.854
0.615
10.9
1.73
11.5
0.571
0.697
0.209
32.6
8.14
3.11
1.32
0.781
0.625
9.55
1.58
 
 
 
 
 
 
 
 
 
 
 
 
12.25
0.525
0.538
0.255
24.2
6.93
2.60
1.17
0.703
0.571
8.40
1.43
9.8
0.540
0.647
0.203
21.3
6.08
2.72
0.968
0.625
0.581
7.12
1.26
 
 
 
 
 
 
 
 
 
 
 
 
13
0.514
0.380
0.317
17.4
5.80
2.13
1.05
0.642
0.525
7.26
1.36
10.5
0.499
0.486
0.255
15.2
5.06
2.22
0.866
0.564
0.529
6.15
1.15
8.2
0.511
0.599
0.198
13.1
4.38
2.34
0.693
0.492
0.537
5.13
0.993
 
 
 
 
 
 
 
 
 
 
 
 
9
0.478
0.427
0.262
8.90
3.56
1.83
0.632
0.450
0.489
4.36
0.918
6.7
0.484
0.552
0.217
7.49
3.00
1.95
0.479
0.378
0.493
3.51
0.763
 
 
 
 
 
 
 
 
 
 
 
 
7.25
0.459
0.386
0.264
4.59
2.29
1.47
0.433
0.343
0.450
2.81
0.697
5.4
0.457
0.502
0.241
3.85
1.93
1.56
0.319
0.283
0.449
2.26
0.569
 
 
 
 
 
 
 
 
 
 
 
 
6
0.455
0.322
0.291
2.07
1.38
1.08
0.305
0.268
0.416
1.72
0.544
5
0.438
0.392
0.242
1.85
1.24
1.12
0.247
0.233
0.410
1.50
0.466
4.1
0.436
0.461
0.284
1.66
1.10
1.17
0.197
0.202
0.404
1.30
0.401
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