VS 1800x418 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 1800x418 (México) · Doble T VS 1800x418 (Argentina / LATAM) · UB 1800 (UK / Australia)

The VS 1800x418 steel profile weighs 417.7 kg/m (280.71 lb/ft), has a depth of 1800 mm (70.87 in), flange width 500 mm (19.69 in). Cross-sectional area: 53,212.5 mm². Moment of inertia Ix = 3,009,158.378 cm⁴, Iy = 65,653.271 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	1800 mm	70.87 in
Width (b)	500 mm	19.69 in
Web thickness (tw)	12.5 mm	0.49 in
Flange thickness (tf)	31.5 mm	1.24 in
Weight	417.7 kg/m	280.71 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	53,212.5 mm²	82.479 in²
Moment of inertia (Ix)	3,009,158.38 cm⁴	72295.03 in⁴
Moment of inertia (Iy)	65,653.27 cm⁴	1577.32 in⁴
Elastic section modulus (Sx)	33,435.09 cm³	2040.343 in³
Elastic section modulus (Sy)	2,626.13 cm³	160.257 in³
Plastic section modulus (Zx)	37,282.53 cm³	2275.129 in³
Plastic section modulus (Zy)	4,005.35 cm³	244.423 in³
Radius of gyration (rx)	75.2 cm	29.606 in
Radius of gyration (ry)	11.11 cm	4.373 in