This section is from the book "The Building Trades Pocketbook", by International Correspondence Schools. Also available from Amazon: Building Trades Pocketbook: a Handy Manual of reference on Building Construction.
Size of Angles. | Thickness. | Weight per Foot. | Area of Section. | Distance from Center of Gravity to Back of Flange. | Moment of Inertia, Axis Parallel to Flange. | Section Modulus, Axis as Before. | Radius of Gyration, Axis as Before. |
In. | In. | Lb. | Sq. In. | In. | J. | Q. | R. |
6 X6 | 7/8 | 34.00 | 10.03 | 1.87 | 35.300 | 8.170 | 1.87 |
6 X6 | 7/16 | 17.20 | 5.06 | 1.66 | 17.680 | 4.070 | 1.87 |
6 X6 | 3/8 | 14.80 | 4.36 | 1.64 | 15.400 | 3.520 | 1.88 |
5 X5 | 3/4 | 24.20 | 7.11 | 1.56 | 17.000 | 4.780 | 1.55 |
5 X5 | 3/8 | 12.30 | 3.61 | 1.39 | 8.740 | 2.420 | 1.56 |
4 X4 | 13/16 | 20.80 | 6.11 | 1.35 | 9.450 | 3.320 | 1.24 |
4 X4 | 5/16 | 8.16 | 2.40 | 1.12 | 3.720 | 1.290 | 1.24 |
3 1/2x3 1/2 | 5/8 | 13.50 | 3.98 | 1.10 | 4.330 | 1.810 | 1.04 |
3 1/2x3 1/2 | 5/16 | 7.11 | 2.09 | .99 | 2.450 | .980 | 1.08 |
3 X3 | 5/8 | 12.10 | 3.56 | 1.03 | 3.200 | 1.480 | .94 |
3 X3 | 1/4 | 4.90 | 1.44 | .84 | 1.240 | .580 | .93 |
2 1/2x2 1/2 | 1/2 | 7.85 | 2.31 | .82 | 1.330 | .760 | .76 |
2 1/2x2 1/2 | 1/4 | 4.05 | 1.19 | .72 | .700 | .400 | .77 |
2 1/4x2 1/4 | 1/2 | 7.17 | 2.11 | .78 | 1.040 | .650 | .70 |
2 1/4x2 1/4 | 1/4 | 3.70 | 1.06 | .66 | .510 | .320 | .69 |
2 1/4x2 1/4 | 3/16 | 2.75 | .81 | .63 | .390 | .240 | .69 |
2 X2 | 1/2 | 6.32 | 1.86 | .72 | .720 | .510 | .62 |
2 X2 | 3/16 | 2.41 | .71 | .57 | .280 | .190 | .62 |
1 3/4x1 3/4 | 7/16 | 4.72 | 1.39 | .61 | .390 | .320 | .52 |
1 3/4x1 3/4 | 3/16 | 2.11 | .62 | .51 | .180 | .140 | .54 |
1 1/2x 1/2 | 3/8 | 3.33 | .98 | .51 | .190 | .190 | .44 |
1 1/2x1 1/2 | 3/16 | 1.80 | .53 | .44 | .110 | .104 | .46 |
1 1/4x1 1/4 | 5/16 | 2.55 | .75 | .46 | .123 | .134 | .40 |
1 1/4x1 1/4 | 1/8 | 1.02 | .30 | .35 | .044 | .049 | .38 |
1 x 1 | 1/4 | 1.57 | .46 | .36 | .045 | .064 | .31 |
1 x 1 | 1/8 | .78 | .23 | .30 | .022 | .031 | .31 |
7/8x7/8 | 3/16 | .99 | .29 | .29 | .019 | .033 | .26 |
7/8x7/8 | 1/8 | .68 | .20 | .25 | .014 | .022 | .27 |
3/4x3/4 | 3/16 | .85 | .25 | .26 | .012 | .024 | .22 |
3/4x3/4 | 1/8 | .58 | .17 | .23 | .009 | .017 | .23 |
 
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