W 490 x 155,4 Acindar · Weight & Dimensions

Acindar, hot-rolled 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: IPR 490 x 155,4 (México) · Doble T 490 x 155,4 (Argentina / LATAM) · UB 490 (UK / Australia)

The W 490 x 155,4 steel profile weighs 155.4 kg/m (104.45 lb/ft), has a depth of 490 mm (19.29 in), flange width 300 mm (11.81 in). Cross-sectional area: 19,753.779 mm². Moment of inertia Ix = 86,974.78 cm⁴, Iy = 10,367.055 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 mm	0.47 in
Flange thickness (tf)	23 mm	0.91 in
Fillet radius (r)	27 mm	1.06 in
Weight	155.4 kg/m	104.45 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	19,753.78 mm²	30.618 in²
Moment of inertia (Ix)	86,974.78 cm⁴	2089.57 in⁴
Moment of inertia (Iy)	10,367.06 cm⁴	249.07 in⁴
Elastic section modulus (Sx)	3,549.99 cm³	216.635 in³
Elastic section modulus (Sy)	691.14 cm³	42.176 in³
Plastic section modulus (Zx)	3,948.86 cm³	240.975 in³
Plastic section modulus (Zy)	1,058.51 cm³	64.595 in³
Radius of gyration (rx)	20.98 cm	8.261 in
Radius of gyration (ry)	7.24 cm	2.852 in