I 788x180x12.7x19.1 IMCA · Weight & Dimensions

IMCA, 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.

Also known as: I 788x180x12.7x19.1 (México) · Doble T I 788x180x12.7x19.1 (Argentina / LATAM) · UB 788 (UK / Australia)

The I 788x180x12.7x19.1 steel profile weighs 128.7 kg/m (86.51 lb/ft), has a depth of 788 mm (31.02 in), flange width 180 mm (7.09 in). Cross-sectional area: 16,398.46 mm². Moment of inertia Ix = 146,262.151 cm⁴, Iy = 1,869.319 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	788 mm	31.02 in
Width (b)	180 mm	7.09 in
Web thickness (tw)	12.7 mm	0.50 in
Flange thickness (tf)	19.1 mm	0.75 in
Weight	128.7 kg/m	86.51 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	16,398.46 mm²	25.418 in²
Moment of inertia (Ix)	146,262.15 cm⁴	3513.95 in⁴
Moment of inertia (Iy)	1,869.32 cm⁴	44.91 in⁴
Elastic section modulus (Sx)	3,712.24 cm³	226.536 in³
Elastic section modulus (Sy)	207.7 cm³	12.675 in³
Plastic section modulus (Zx)	4,428.46 cm³	270.243 in³
Plastic section modulus (Zy)	339.65 cm³	20.727 in³
Radius of gyration (rx)	29.87 cm	11.758 in
Radius of gyration (ry)	3.38 cm	1.329 in