I 520x180x9.5x15.5 IAS · Weight & Dimensions

IAS, 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.

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Also known as: I 520x180x9.5x15.5 (México) · Doble T I 520x180x9.5x15.5 (Argentina / LATAM) · UB 520 (UK / Australia)

The I 520x180x9.5x15.5 steel profile weighs 80.3 kg/m (53.94 lb/ft), has a depth of 520 mm (20.47 in), flange width 180 mm (7.09 in). Cross-sectional area: 10,225.5 mm². Moment of inertia Ix = 44,773.718 cm⁴, Iy = 1,510.094 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	520 mm	20.47 in
Width (b)	180 mm	7.09 in
Web thickness (tw)	9.5 mm	0.37 in
Flange thickness (tf)	15.5 mm	0.61 in
Weight	80.3 kg/m	53.94 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,225.5 mm²	15.850 in²
Moment of inertia (Ix)	44,773.72 cm⁴	1075.69 in⁴
Moment of inertia (Iy)	1,510.09 cm⁴	36.28 in⁴
Elastic section modulus (Sx)	1,722.07 cm³	105.087 in³
Elastic section modulus (Sy)	167.79 cm³	10.239 in³
Plastic section modulus (Zx)	1,975.47 cm³	120.551 in³
Plastic section modulus (Zy)	262.13 cm³	15.996 in³
Radius of gyration (rx)	20.93 cm	8.238 in
Radius of gyration (ry)	3.84 cm	1.513 in