|Table of Contents |Section Contents|
wa = weight per foot of aluminum sections, lb
ws = weight per foot of steel sections, lb
A = area, in^2
I = moment of inertia, in^4
k = radius of gyration, in
x = centroidal distance, in
Z = section modulus, in^3
a b t A wa ws I1-1 k1-1 Z1-1 I2-2 k2-2 Z2-2 x -- ----- ----- ---- ----- ----- ------ ----- ----- ---- ---- ---- ---- 3 1.410 0.170 1.21 1.46 4.1 1.66 1.17 1.10 0.20 0.40 0.20 0.44 3 1.498 0.258 1.47 1.78 5.0 1.85 1.12 1.24 0.25 0.41 0.23 0.44 3 1.596 0.356 1.76 2.13 6.0 2.07 1.08 1.38 0.31 0.42 0.27 0.46 4 1.580 0.180 1.57 1.90 5.4 3.83 1.56 1.92 0.32 0.45 0.28 0.46 4 1.720 0.320 2.13 2.58 7.25 4.58 1.47 2.29 0.43 0.45 0.34 0.46 5 1.750 0.190 1.97 2.38 6.7 7.49 1.95 3.00 0.48 0.49 0.38 0.48 5 1.885 0.325 2.64 3.20 9.0 8.90 1.83 3.56 0.63 0.49 0.45 0.48 6 1.920 0.200 2.40 2.91 8.2 13.12 2.34 4.37 0.69 0.54 0.49 0.51 6 2.034 0.314 3.09 3.73 10.5 15.18 2.22 5.06 0.87 0.53 0.56 0.50 6 2.157 0.437 3.82 4.63 13.0 17.39 2.13 5.80 1.05 0.52 0.64 0.51 7 2.090 0.210 2.87 3.47 9.8 21.27 2.72 6.08 0.97 0.58 0.63 0.54 7 2.194 0.314 3.60 4.36 12.25 24.24 2.60 6.93 1.17 0.57 0.70 0.52 7 2.299 0.419 4.33 5.24 14.75 27.24 2.51 7.78 1.38 0.56 0.78 0.53 8 2.260 0.220 3.36 4.10 11.5 32.30 3.10 8.10 1.30 0.63 0.79 0.58 8 2.343 0.303 4.04 4.89 13.75 36.11 2.99 9.03 1.53 0.61 0.85 0.55 8 2.527 0.487 5.51 6.67 18.75 43.96 2.82 10.99 1.98 0.60 1.01 0.57 9 2.430 0.230 3.91 4.74 13.4 47.68 3.49 10.60 1.75 0.67 0.96 0.60 9 2.485 0.285 4.41 5.34 15.0 51.02 3.40 11.34 1.93 0.66 1.01 0.59 9 2.648 0.448 5.88 7.11 20.0 60.92 3.22 13.54 2.42 0.64 1.17 0.58 10 2.600 0.240 4.49 5.43 15.3 67.37 3.87 13.47 2.28 0.71 1.16 0.63 10 2.739 0.379 5.88 7.11 20.0 78.95 3.66 15.79 2.81 0.69 1.32 0.61 10 2.886 0.526 7.35 8.89 25.0 91.20 3.52 18.24 3.36 0.68 1.48 0.62 10 3.033 0.673 8.82 10.67 30.0 103.45 3.43 20.69 3.95 0.67 1.66 0.65 12 3.047 0.387 7.35 8.89 25.0 144.37 4.43 24.06 4.47 0.78 1.89 0.67 12 3.170 0.510 8.82 10.67 30.0 162.08 4.29 27.01 5.14 0.76 2.06 0.67 -- ----- ----- ---- ----- ----- ------ ----- ----- ---- ---- ---- ----