S12x40.8

American standard beams from AISC Shapes Database v16.0. Also designated S310X60.7.

5.25 in12 in

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

Dimensions

PropertyMetricImperial
Depth, d305 mm12 in
Flange width, b_f133 mm5.25 in
Web thickness, t_w11.7 mm0.462 in
Flange thickness, t_f16.7 mm0.659 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ112,000,000 mm⁴270 in⁴
Elastic modulus, Sₓ739,000 mm³45.1 in³
Plastic modulus, Zₓ864,000 mm³52.7 in³
Radius of gyration, rₓ121 mm4.76 in
Distance to top fibre152.5 mm6 in
Distance to bottom fibre152.5 mm6 in

Bending about the minor axis

PropertyMetricImperial
Second moment of area, I_y5,620,000 mm⁴13.5 in⁴
Elastic modulus, S_y84,100 mm³5.13 in³
Plastic modulus, Z_y145,000 mm³8.86 in³
Radius of gyration, r_y26.9 mm1.06 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J703,000 mm⁴1.69 in⁴
Warping constant, C_w1.16000e+11 mm⁶433 in⁶

Mass

PropertyMetricImperial
Mass per metre60.7 kg/m40.8 lb/ft
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