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Aluminum I-Beam Dimensional Sizes Area Moment of Inertia Table

Structural Engineering Shapes and Materials

Aluminum I-Beam Dimensional Sizes, Area Moment of Inertia Table

Aluminum Association Standard I-Beam Dimensions, Areas, Weights and Section Properties

Aluminum I-Beam Dimensional Sizes

Designation
(Depth x Weight)
(in. x lb / ft
Depth
d
(in.)
Width
bf
(in.)
Flange
Thickness
tf (in.)
Web
Thickness
tw (in.)
Fillet
Radius
R (in.)
Area
A
(in.2)
I 3 x 1.64
3
2.50
0.20
0.13
0.25
1.39
I 3 x 2.03
3
2.50
0.26
0.15
0.25
1.73
I 4 x 2.31
4
3.00
0.23
0.15
0.25
1.96
I 4 x 2.79
4
3.00
0.29
0.17
0.25
2.38
I 5 x 3.70
5
3.50
0.32
0.19
0.30
3.15
I 6 x 4.03
6
4.00
.29
0.19
0.30
3.43
I 6 x 4.69
6
4.00
0.35
0.21
0.30
3.99
I 7 x 5.80
7
4.50
0.38
0.23
0.30
4.93
I 8 x 6.18
8
5.00
0.35
0.23
0.30
5.26
I 8 x 7.02
8
5.00
0.41
0.25
0.30
5.97
I 9 x 8.36
9
5.50
0.44
0.27
0.30
7.11
I 10 x 8.65
10
6.00
0.41
0.25
0.40
7.35
I 10 x 10.3
10
6.00
0.50
0.29
0.40
8.75
I 12 x 11.7
12
7.00
0.47
0.29
0.40
9.92
I 12 x 14.3
12
7.00
0.62
0.31
0.40
12.2

 

Designation
(Depth x Weight)
(in. x lb / ft
Axis X-X
Axis Y-Y
Warping
Constant
Cw
(in.6)
Torsion
Constant
J
(in..4)
Ix
(in.4)
Sx
(in.3)
rx
(in.)
Iy
(in.4)
Sy
(in.3)
ry
(in.)
I 3 x 1.64
2.24
1.49
1.27
0.522
0.418
0.613
1.02
0.019
I 3 x 2.03
2.71
1.81
1.25
0.679
0.543
0.627
1.27
0.037
I 4 x 2.31
5.62
2.81
1.69
1.04
0.691
0.727
3.68
0.033
I 4 x 2.79
6.71
3.36
1.68
1.31
0.872
0.742
4.50
0.061
I 5 x 3.70
13.9
5.58
2.11
2.29
1.31
0.853
12.5
0.098
I 6 x 4.03
22.0
7.33
2.53
3.10
1.55
0.951
25.3
0.089
I 6 x 4.69
25.5
8.50
2.53
3.74
1.87
0.968
29.8
0.145
I 7 x 5.80
42.9
12.3
2.95
5.78
2.57
1.08
63.3
0.206
I 8 x 6.18
59.7
14.9
3.37
7.30
2.92
1.18
107
0.188
I 8 x 7.02
67.8
16.9
3.37
8.55
3.42
1.20
123
0.286
I 9 x 8.36
102
22.7
3.79
12.2
4.44
1.31
224
0.386
I 10 x 8.65
132
26.4
4.24
14.8
4.93
1.42
340
0.360
I 10 x 10.3
156
31.2
4.22
18.0
6.01
1.44
407
0.620
I 12 x 11.7
256
42.6
5.07
26.9
7.69
1.65
894
0.621
I 12 x 14.3
317
52.9
5.11
35.5
10.1
1.71
1149
1.26

Source

  • Aluminum Standards and Data per. The Aluminum Association

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