W 200 x 31,3 Gerdau · Weight & Dimensions

Gerdau · 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 200 x 31,3 (México) · Doble T 200 x 31,3 (Argentina / LATAM) · UB 210 (UK / Australia)

The W 200 x 31,3 steel profile weighs 31.3 kg/m (21.03 lb/ft), has a depth of 210 mm (8.27 in), flange width 134 mm (5.28 in). Cross-sectional area: 4,032.881 mm². Moment of inertia Ix = 3,167.596 cm⁴, Iy = 409.735 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	210 mm	8.27 in
Width (b)	134 mm	5.28 in
Web thickness (tw)	6.4 mm	0.25 in
Flange thickness (tf)	10.2 mm	0.40 in
Fillet radius (r)	10 mm	0.39 in
Weight	31.3 kg/m	21.03 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,032.88 mm²	6.251 in²
Moment of inertia (Ix)	3,167.6 cm⁴	76.10 in⁴
Moment of inertia (Iy)	409.74 cm⁴	9.84 in⁴
Elastic section modulus (Sx)	301.68 cm³	18.409 in³
Elastic section modulus (Sy)	61.15 cm³	3.732 in³
Plastic section modulus (Zx)	338.55 cm³	20.660 in³
Plastic section modulus (Zy)	93.98 cm³	5.735 in³
Radius of gyration (rx)	8.86 cm	3.489 in
Radius of gyration (ry)	3.19 cm	1.255 in