W 205 x 40,4 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 205 x 40,4 (México) · Doble T 205 x 40,4 (Argentina / LATAM) · UB 205 (UK / Australia)

The W 205 x 40,4 steel profile weighs 40.4 kg/m (27.17 lb/ft), has a depth of 205 mm (8.07 in), flange width 220 mm (8.66 in). Cross-sectional area: 5,146.124 mm². Moment of inertia Ix = 4,170.225 cm⁴, Iy = 1,510.493 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	205 mm	8.07 in
Width (b)	220 mm	8.66 in
Web thickness (tw)	6 mm	0.24 in
Flange thickness (tf)	8.5 mm	0.33 in
Fillet radius (r)	18 mm	0.71 in
Weight	40.4 kg/m	27.17 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,146.12 mm²	7.976 in²
Moment of inertia (Ix)	4,170.22 cm⁴	100.19 in⁴
Moment of inertia (Iy)	1,510.49 cm⁴	36.29 in⁴
Elastic section modulus (Sx)	406.85 cm³	24.828 in³
Elastic section modulus (Sy)	137.32 cm³	8.380 in³
Plastic section modulus (Zx)	445.5 cm³	27.186 in³
Plastic section modulus (Zy)	209.34 cm³	12.775 in³
Radius of gyration (rx)	9 cm	3.544 in
Radius of gyration (ry)	5.42 cm	2.133 in