W 556 x 122,5 Arval · Weight & Dimensions

Arval, 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 556 x 122,5 (México) · Doble T 556 x 122,5 (Argentina / LATAM) · UB 556 (UK / Australia)

The W 556 x 122,5 steel profile weighs 122.5 kg/m (82.29 lb/ft), has a depth of 556 mm (21.89 in), flange width 212 mm (8.35 in). Cross-sectional area: 15,607.363 mm². Moment of inertia Ix = 79,157.359 cm⁴, Iy = 3,224.387 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	556 mm	21.89 in
Width (b)	212 mm	8.35 in
Web thickness (tw)	12.7 mm	0.50 in
Flange thickness (tf)	20.2 mm	0.80 in
Fillet radius (r)	24 mm	0.94 in
Weight	122.5 kg/m	82.29 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	15,607.36 mm²	24.191 in²
Moment of inertia (Ix)	79,157.36 cm⁴	1901.76 in⁴
Moment of inertia (Iy)	3,224.39 cm⁴	77.47 in⁴
Elastic section modulus (Sx)	2,847.39 cm³	173.759 in³
Elastic section modulus (Sy)	304.19 cm³	18.563 in³
Plastic section modulus (Zx)	3,263.38 cm³	199.144 in³
Plastic section modulus (Zy)	480.52 cm³	29.323 in³
Radius of gyration (rx)	22.52 cm	8.866 in
Radius of gyration (ry)	4.55 cm	1.789 in