W 550 x 199,4 Acindar · Weight & Dimensions

Acindar, 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 199,4 (México) · Doble T 550 x 199,4 (Argentina / LATAM) · UB 550 (UK / Australia)

The W 550 x 199,4 steel profile weighs 199.4 kg/m (133.99 lb/ft), has a depth of 550 mm (21.65 in), flange width 300 mm (11.81 in). Cross-sectional area: 25,405.779 mm². Moment of inertia Ix = 136,690.878 cm⁴, Iy = 13,076.899 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	550 mm	21.65 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	15 mm	0.59 in
Flange thickness (tf)	29 mm	1.14 in
Fillet radius (r)	27 mm	1.06 in
Weight	199.4 kg/m	133.99 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	25,405.78 mm²	39.379 in²
Moment of inertia (Ix)	136,690.88 cm⁴	3284.00 in⁴
Moment of inertia (Iy)	13,076.9 cm⁴	314.17 in⁴
Elastic section modulus (Sx)	4,970.58 cm³	303.325 in³
Elastic section modulus (Sy)	871.79 cm³	53.200 in³
Plastic section modulus (Zx)	5,590.61 cm³	341.161 in³
Plastic section modulus (Zy)	1,341.14 cm³	81.842 in³
Radius of gyration (rx)	23.2 cm	9.132 in
Radius of gyration (ry)	7.17 cm	2.825 in