W 250 x 71,0 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 250 x 71,0 (México) · Doble T 250 x 71,0 (Argentina / LATAM) · UB 249.7 (UK / Australia)

The W 250 x 71,0 steel profile weighs 71.0 kg/m (47.69 lb/ft), has a depth of 249.7 mm (9.83 in), flange width 258 mm (10.16 in). Cross-sectional area: 9,038.853 mm². Moment of inertia Ix = 10,071.203 cm⁴, Iy = 3,439.112 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	249.7 mm	9.83 in
Width (b)	258 mm	10.16 in
Web thickness (tw)	12 mm	0.47 in
Flange thickness (tf)	12 mm	0.47 in
Fillet radius (r)	12.7 mm	0.50 in
Weight	71.0 kg/m	47.69 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,038.85 mm²	14.010 in²
Moment of inertia (Ix)	10,071.2 cm⁴	241.96 in⁴
Moment of inertia (Iy)	3,439.11 cm⁴	82.62 in⁴
Elastic section modulus (Sx)	806.66 cm³	49.226 in³
Elastic section modulus (Sy)	266.6 cm³	16.269 in³
Plastic section modulus (Zx)	903.97 cm³	55.164 in³
Plastic section modulus (Zy)	408.73 cm³	24.943 in³
Radius of gyration (rx)	10.56 cm	4.156 in
Radius of gyration (ry)	6.17 cm	2.428 in