Steel Section Catalog

VS 800x129

BR — Wide Flange (I-beam)

Wide flange beams (W shapes / I-beams) are the most common structural steel profile used in building construction. They are used for beams, columns, and girders in steel-framed buildings and bridges. Designed per AISC 360, Eurocode 3, and NBR 8800.

The VS 800x129 steel profile weighs 128.6 kg/m (86.42 lb/ft), has a depth of 800 mm (31.50 in), flange width 320 mm (12.60 in). Cross-sectional area: 16,384 mm². Moment of inertia Ix = 187,572.77 cm⁴, Iy = 8,741.41 cm⁴.

h=800b=320tw=8tf=16
Cross-section (not to scale)

Dimensions

PropertyMetricImperial
Depth (h)800 mm31.50 in
Width (b)320 mm12.60 in
Web thickness (tw)8 mm0.31 in
Flange thickness (tf)16 mm0.63 in
Weight128.6 kg/m86.42 lb/ft

Section Properties

PropertyMetricImperial
Area (A)16,384 mm²25.395 in²
Moment of inertia (Ix)187,572.77 cm⁴4506.44 in⁴
Moment of inertia (Iy)8,741.41 cm⁴210.01 in⁴
Elastic section modulus (Sx)4,689.32 cm³286.161 in³
Elastic section modulus (Sy)546.34 cm³33.340 in³
Plastic section modulus (Zx)5,193.73 cm³316.942 in³
Plastic section modulus (Zy)831.49 cm³50.741 in³
Radius of gyration (rx)33.84 cm13.323 in
Radius of gyration (ry)7.3 cm2.874 in

Beam Calculator— VS 800x129

3D preview unavailable

Your device does not support WebGL. The 2D diagram below is still fully functional.

mfixed @ 0mfixed @ 6mkN/m

Results — VS 800x129

Mmax

15.0 kN·m

Vmax

15.0 kN

δmax

0.04 mm

L/133385

R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard: