W 779 x 284,2 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 779 x 284,2 (México) · Doble T 779 x 284,2 (Argentina / LATAM) · UB 779 (UK / Australia)

The W 779 x 284,2 steel profile weighs 284.2 kg/m (190.96 lb/ft), has a depth of 779 mm (30.67 in), flange width 382 mm (15.04 in). Cross-sectional area: 35,934.8 mm². Moment of inertia Ix = 378,320.324 cm⁴, Iy = 27,999.323 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	779 mm	30.67 in
Width (b)	382 mm	15.04 in
Web thickness (tw)	18 mm	0.71 in
Flange thickness (tf)	30.1 mm	1.19 in
Weight	284.2 kg/m	190.96 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	35,934.8 mm²	55.699 in²
Moment of inertia (Ix)	378,320.32 cm⁴	9089.15 in⁴
Moment of inertia (Iy)	27,999.32 cm⁴	672.68 in⁴
Elastic section modulus (Sx)	9,712.97 cm³	592.725 in³
Elastic section modulus (Sy)	1,465.93 cm³	89.457 in³
Plastic section modulus (Zx)	10,936.03 cm³	667.360 in³
Plastic section modulus (Zy)	2,254.38 cm³	137.571 in³
Radius of gyration (rx)	32.45 cm	12.774 in
Radius of gyration (ry)	8.83 cm	3.475 in