W 431 x 148,9 IMCA · Weight & Dimensions

IMCA, 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 431 x 148,9 (México) · Doble T 431 x 148,9 (Argentina / LATAM) · UB 431 (UK / Australia)

The W 431 x 148,9 steel profile weighs 148.9 kg/m (100.07 lb/ft), has a depth of 431 mm (16.97 in), flange width 265 mm (10.43 in). Cross-sectional area: 18,926.9 mm². Moment of inertia Ix = 61,538.139 cm⁴, Iy = 7,764.513 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	431 mm	16.97 in
Width (b)	265 mm	10.43 in
Web thickness (tw)	14.9 mm	0.59 in
Flange thickness (tf)	25 mm	0.98 in
Weight	148.9 kg/m	100.07 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	18,926.9 mm²	29.337 in²
Moment of inertia (Ix)	61,538.14 cm⁴	1478.45 in⁴
Moment of inertia (Iy)	7,764.51 cm⁴	186.54 in⁴
Elastic section modulus (Sx)	2,855.6 cm³	174.260 in³
Elastic section modulus (Sy)	586 cm³	35.760 in³
Plastic section modulus (Zx)	3,230.47 cm³	197.136 in³
Plastic section modulus (Zy)	898.96 cm³	54.858 in³
Radius of gyration (rx)	18.03 cm	7.099 in
Radius of gyration (ry)	6.4 cm	2.522 in