I 490x300x12.5x25 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 490x300x12.5x25 (México) · Doble T I 490x300x12.5x25 (Argentina / LATAM) · UB 490 (UK / Australia)

The I 490x300x12.5x25 steel profile weighs 160.9 kg/m (108.14 lb/ft), has a depth of 490 mm (19.29 in), flange width 300 mm (11.81 in). Cross-sectional area: 20,500 mm². Moment of inertia Ix = 90,035.833 cm⁴, Iy = 11,257.161 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	490 mm	19.29 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	12.5 mm	0.49 in
Flange thickness (tf)	25 mm	0.98 in
Weight	160.9 kg/m	108.14 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	20,500 mm²	31.775 in²
Moment of inertia (Ix)	90,035.83 cm⁴	2163.11 in⁴
Moment of inertia (Iy)	11,257.16 cm⁴	270.45 in⁴
Elastic section modulus (Sx)	3,674.93 cm³	224.259 in³
Elastic section modulus (Sy)	750.48 cm³	45.797 in³
Plastic section modulus (Zx)	4,092.5 cm³	249.741 in³
Plastic section modulus (Zy)	1,142.19 cm³	69.701 in³
Radius of gyration (rx)	20.96 cm	8.251 in
Radius of gyration (ry)	7.41 cm	2.917 in