W 229 x 99,7 British Steel · Weight & Dimensions

British Steel, 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 229 x 99,7 (México) · Doble T 229 x 99,7 (Argentina / LATAM) · UB 228.6 (UK / Australia)

The W 229 x 99,7 steel profile weighs 99.7 kg/m (67.00 lb/ft), has a depth of 228.6 mm (9.00 in), flange width 210.3 mm (8.28 in). Cross-sectional area: 12,684.929 mm². Moment of inertia Ix = 11,297.893 cm⁴, Iy = 3,679.242 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	228.6 mm	9.00 in
Width (b)	210.3 mm	8.28 in
Web thickness (tw)	14.5 mm	0.57 in
Flange thickness (tf)	23.7 mm	0.93 in
Fillet radius (r)	10.2 mm	0.40 in
Weight	99.7 kg/m	67.00 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,684.93 mm²	19.662 in²
Moment of inertia (Ix)	11,297.89 cm⁴	271.43 in⁴
Moment of inertia (Iy)	3,679.24 cm⁴	88.39 in⁴
Elastic section modulus (Sx)	988.44 cm³	60.319 in³
Elastic section modulus (Sy)	349.9 cm³	21.353 in³
Plastic section modulus (Zx)	1,148.15 cm³	70.065 in³
Plastic section modulus (Zy)	534.45 cm³	32.615 in³
Radius of gyration (rx)	9.44 cm	3.716 in
Radius of gyration (ry)	5.39 cm	2.120 in