T407
This page provides data for area, weight per unit length, moment
of intertia, Section Modulus and Radius of Gyration
for standard beam sections.
D = Section depth, in wf = Flange width, in ws = weight per foot of steel sections, lb per foot A = area, in^2 I = moment of inertia, in^4 k = radius of gyration, in Z = section modulus, in^3 S D wf ws A I1-1 k1-1 Z1-1 I2-2 k2-2 Z2-2 --- --- ----- ------ ------ ------- ----- ------ ------ ----- ------ S18 18 6-1/4 70 20.6 926 6.71 103 24.1 1.08 7.72 S18 18 6 54.7 16.1 804 7.07 89.4 20.8 1.14 6.94 S15 15 5-5/8 50 14.7 486 5.75 64.8 15.7 1.03 5.57 S15 15 5-1/2 42.9 12.6 447 5.95 59.6 14.4 1.07 5.23 S12 12 5-1/2 50 14.7 305 4.55 50.8 15.7 1.03 5.74 S12 12 5-1/4 40.8 12.0 272 4.77 45.4 13.6 1.06 5.16 S12 12 5-1/8 35 10.3 229 4.72 38.2 9.87 .980 3.89 S12 12 5 31.8 9.35 218 4.83 36.4 9.36 1.00 3.74 S10 10 5 35 10.3 147 3.78 29.4 8.36 .901 3.38 S10 10 4-5/8 25.4 7.46 124 4.07 24.7 6.79 .954 2.91 S8 8 4-1/8 23 6.77 64.9 3.10 16.2 4.31 .798 2.07 S8 8 4 18.4 5.41 57.6 3.26 14.4 3.73 .831 1.86 S7 7 3-5/8 15.3 4.50 36.7 2.86 10.5 2.64 .766 1.44 S6 6 3-5/8 17.25 5.07 26.3 2.28 8.77 3.31 .675 1.30 S6 6 3-3/8 12.5 3.67 22.1 2.45 7.37 1.82 .705 1.09 S5 5 3 10 2.94 12.3 2.05 4.92 1.22 .643 .809 S4 4 2-3/4 9.5 2.79 6.79 1.56 3.39 .903 .569 .646 S4 4 2-5/8 7.7 2.26 6.08 1.64 3.04 .764 .581 .574 --- --- ----- ------ ------ ------- ----- ------ ------ ----- ------