W18x50

Wide flange from AISC Shapes Database v16.0. Also designated W460X74.

7.5 in18 in

Outline drawn from the published dimensions. Fillets and root radii are not shown.

Dimensions

PropertyMetricImperial
Depth, d457 mm18 in
Flange width, b_f191 mm7.5 in
Web thickness, t_w9.02 mm0.355 in
Flange thickness, t_f14.5 mm0.57 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ333,000,000 mm⁴800 in⁴
Elastic modulus, Sₓ1,460,000 mm³88.9 in³
Plastic modulus, Zₓ1,660,000 mm³101 in³
Radius of gyration, rₓ187 mm7.38 in
Distance to top fibre228.5 mm9 in
Distance to bottom fibre228.5 mm9 in

Bending about the minor axis

PropertyMetricImperial
Second moment of area, I_y16,700,000 mm⁴40.1 in⁴
Elastic modulus, S_y175,000 mm³10.7 in³
Plastic modulus, Z_y272,000 mm³16.6 in³
Radius of gyration, r_y41.9 mm1.65 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J516,000 mm⁴1.24 in⁴
Warping constant, C_w8.16000e+11 mm⁶3,040 in⁶

Mass

PropertyMetricImperial
Mass per metre74 kg/m50 lb/ft
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