VS 400x68 Usiminas · Weight & Dimensions

Usiminas, welded sections · 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 400x68 (México) · Doble T VS 400x68 (Argentina / LATAM) · UB 400 (UK / Australia)

The VS 400x68 steel profile weighs 68.4 kg/m (45.99 lb/ft), has a depth of 400 mm (15.75 in), flange width 200 mm (7.87 in). Cross-sectional area: 8,718.4 mm². Moment of inertia Ix = 26,223.005 cm⁴, Iy = 2,134.1 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	400 mm	15.75 in
Width (b)	200 mm	7.87 in
Web thickness (tw)	6.3 mm	0.25 in
Flange thickness (tf)	16 mm	0.63 in
Weight	68.4 kg/m	45.99 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,718.4 mm²	13.514 in²
Moment of inertia (Ix)	26,223.01 cm⁴	630.01 in⁴
Moment of inertia (Iy)	2,134.1 cm⁴	51.27 in⁴
Elastic section modulus (Sx)	1,311.15 cm³	80.012 in³
Elastic section modulus (Sy)	213.41 cm³	13.023 in³
Plastic section modulus (Zx)	1,442.09 cm³	88.002 in³
Plastic section modulus (Zy)	323.65 cm³	19.751 in³
Radius of gyration (rx)	17.34 cm	6.828 in
Radius of gyration (ry)	4.95 cm	1.948 in