W 21X57 - Section Properties

The W 21X57 is a steel section with a mass of 84.8 kg/m, an overall depth of 535.9 mm and width of 166.6 mm. It has a cross-sectional area of 107.7 cm², a second moment of area Iᵧ of 48699 cm⁴, a plastic modulus Wₚₗ,ᵧ of 2113.9 cm³, to AISC Shapes Database v16.0 (SCI P363 Blue Book).

Mass: 57 lb/ft (84.8 kg/m)
Depth: 21.1 in (535.9 mm)
Width: 6.56 in (166.6 mm)
Area: 16.7 in² (107.7 cm²)

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mass (lb/ft)57 (84.8 kg/m)

h (in)21.1 (535.9 mm)

b (in)6.56 (166.6 mm)

t_w (in)0.405 (10.3 mm)

t_f (in)0.65 (16.5 mm)

A (in²)16.7 (107.7 cm²)

I_y (in⁴)1170 (48699 cm⁴)

W_el,y (in³)111 (1819 cm³)

W_pl,y (in³)129 (2113.9 cm³)

i_y (in)8.36 (21.23 cm)

I_z (in⁴)30.6 (1274 cm⁴)