W 550 x 105,2 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 105,2 (México) · Doble T 550 x 105,2 (Argentina / LATAM) · UB 550 (UK / Australia)

The W 550 x 105,2 steel profile weighs 105.2 kg/m (70.69 lb/ft), has a depth of 550 mm (21.65 in), flange width 210 mm (8.27 in). Cross-sectional area: 13,441.603 mm². Moment of inertia Ix = 67,116.517 cm⁴, Iy = 2,667.584 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	550 mm	21.65 in
Width (b)	210 mm	8.27 in
Web thickness (tw)	11.1 mm	0.44 in
Flange thickness (tf)	17.2 mm	0.68 in
Fillet radius (r)	24 mm	0.94 in
Weight	105.2 kg/m	70.69 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	13,441.6 mm²	20.834 in²
Moment of inertia (Ix)	67,116.52 cm⁴	1612.47 in⁴
Moment of inertia (Iy)	2,667.58 cm⁴	64.09 in⁴
Elastic section modulus (Sx)	2,440.6 cm³	148.935 in³
Elastic section modulus (Sy)	254.06 cm³	15.503 in³
Plastic section modulus (Zx)	2,787.01 cm³	170.074 in³
Plastic section modulus (Zy)	400.54 cm³	24.442 in³
Radius of gyration (rx)	22.35 cm	8.797 in
Radius of gyration (ry)	4.45 cm	1.754 in