VS 400x34 · Weight & Dimensions

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.

Also known as: VS 400x34 (México) · Doble T VS 400x34 (Argentina / LATAM) · UB 400 (UK / Australia)

The VS 400x34 steel profile weighs 34.4 kg/m (23.12 lb/ft), has a depth of 400 mm (15.75 in), flange width 160 mm (6.30 in). Cross-sectional area: 4,384 mm². Moment of inertia Ix = 12,077.19 cm⁴, Iy = 546.48 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	400 mm	15.75 in
Width (b)	160 mm	6.30 in
Web thickness (tw)	4.8 mm	0.19 in
Flange thickness (tf)	8 mm	0.31 in
Weight	34.4 kg/m	23.12 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,384 mm²	6.795 in²
Moment of inertia (Ix)	12,077.19 cm⁴	290.15 in⁴
Moment of inertia (Iy)	546.48 cm⁴	13.13 in⁴
Elastic section modulus (Sx)	603.86 cm³	36.850 in³
Elastic section modulus (Sy)	68.31 cm³	4.169 in³
Plastic section modulus (Zx)	676.86 cm³	41.305 in³
Plastic section modulus (Zy)	104.57 cm³	6.381 in³
Radius of gyration (rx)	16.6 cm	6.535 in
Radius of gyration (ry)	3.53 cm	1.390 in