HD 400×237

HD wide flange columns from Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1.

395 mm380 mm

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

Dimensions

PropertyMetricImperial
Depth, d380 mm14.9606 in
Flange width, b_f395 mm15.5512 in
Web thickness, t_w18.9 mm0.744094 in
Flange thickness, t_f30.2 mm1.189 in

Bending about the major axis

PropertyMetricImperial
Second moment of area, Iₓ788,000,000 mm⁴1,893.178 in⁴
Elastic modulus, Sₓ4,150,000 mm³253.2485 in³
Plastic modulus, Zₓ4,690,000 mm³286.2014 in³
Radius of gyration, rₓ162 mm6.378 in
Distance to top fibre190 mm7.4803 in
Distance to bottom fibre190 mm7.4803 in

Bending about the minor axis

PropertyMetricImperial
Second moment of area, I_y310,000,000 mm⁴744.778 in⁴
Elastic modulus, S_y1,570,000 mm³95.8073 in³
Plastic modulus, Z_y2,390,000 mm³145.8467 in³
Radius of gyration, r_y102 mm4.0157 in

Torsion and warping

PropertyMetricImperial
Torsion constant, J8,180,000 mm⁴19.6525 in⁴
Warping constant, C_w9.49000e+12 mm⁶35,339.786 in⁶

Mass

PropertyMetricImperial
Mass per metre237 kg/m159.2566 lb/ft
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