W 131 x 28,0 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 131 x 28,0 (México) · Doble T 131 x 28,0 (Argentina / LATAM) · UB 131 (UK / Australia)

The W 131 x 28,0 steel profile weighs 28.0 kg/m (18.83 lb/ft), has a depth of 131 mm (5.16 in), flange width 128 mm (5.04 in). Cross-sectional area: 3,543.88 mm². Moment of inertia Ix = 1,083.856 cm⁴, Iy = 381.282 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	131 mm	5.16 in
Width (b)	128 mm	5.04 in
Web thickness (tw)	6.9 mm	0.27 in
Flange thickness (tf)	10.9 mm	0.43 in
Weight	28.0 kg/m	18.83 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,543.88 mm²	5.493 in²
Moment of inertia (Ix)	1,083.86 cm⁴	26.04 in⁴
Moment of inertia (Iy)	381.28 cm⁴	9.16 in⁴
Elastic section modulus (Sx)	165.47 cm³	10.098 in³
Elastic section modulus (Sy)	59.58 cm³	3.636 in³
Plastic section modulus (Zx)	188.13 cm³	11.481 in³
Plastic section modulus (Zy)	90.59 cm³	5.528 in³
Radius of gyration (rx)	5.53 cm	2.177 in
Radius of gyration (ry)	3.28 cm	1.291 in