W 40X278 - Section Properties

The W 40X278 is a steel section with a mass of 413.7 kg/m, an overall depth of 1021.1 mm and width of 304.8 mm. It has a cross-sectional area of 531 cm², a second moment of area Iᵧ of 853274 cm⁴, a plastic modulus Wₚₗ,ᵧ of 19500.6 cm³, to AISC Shapes Database v16.0 (SCI P363 Blue Book).

Mass: 278 lb/ft (413.7 kg/m)
Depth: 40.2 in (1021.1 mm)
Width: 12 in (304.8 mm)
Area: 82.3 in² (531 cm²)

🔍 Open the full Steel Catalogue →Run EC3 capacity checks on W 40X278 →

mass (lb/ft)278 (413.7 kg/m)

h (in)40.2 (1021.1 mm)

b (in)12 (304.8 mm)

t_w (in)1.03 (26.2 mm)

t_f (in)1.81 (46 mm)

A (in²)82.3 (531 cm²)

I_y (in⁴)20500 (853274 cm⁴)

W_el,y (in³)1020 (16714.8 cm³)

W_pl,y (in³)1190 (19500.6 cm³)

i_y (in)15.8 (40.13 cm)

I_z (in⁴)521 (21686 cm⁴)