W 550 x 992,7 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 550 x 992,7 (México) · Doble T 550 x 992,7 (Argentina / LATAM) · UB 550 (UK / Australia)

The W 550 x 992,7 steel profile weighs 992.7 kg/m (667.10 lb/ft), has a depth of 550 mm (21.65 in), flange width 448 mm (17.64 in). Cross-sectional area: 126,048 mm². Moment of inertia Ix = 518,432.96 cm⁴, Iy = 173,329.021 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	550 mm	21.65 in
Width (b)	448 mm	17.64 in
Web thickness (tw)	71.9 mm	2.83 in
Flange thickness (tf)	115 mm	4.53 in
Weight	992.7 kg/m	667.10 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	126,048 mm²	195.374 in²
Moment of inertia (Ix)	518,432.96 cm⁴	12455.35 in⁴
Moment of inertia (Iy)	173,329.02 cm⁴	4164.23 in⁴
Elastic section modulus (Sx)	18,852.11 cm³	1150.431 in³
Elastic section modulus (Sy)	7,737.9 cm³	472.198 in³
Plastic section modulus (Zx)	24,251.84 cm³	1479.944 in³
Plastic section modulus (Zy)	11,954.05 cm³	729.484 in³
Radius of gyration (rx)	20.28 cm	7.984 in
Radius of gyration (ry)	11.73 cm	4.617 in