I 850x240x12.5x25 IAS · Weight & Dimensions

IAS, welded 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.

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Also known as: I 850x240x12.5x25 (México) · Doble T I 850x240x12.5x25 (Argentina / LATAM) · UB 850 (UK / Australia)

The I 850x240x12.5x25 steel profile weighs 172.7 kg/m (116.05 lb/ft), has a depth of 850 mm (33.46 in), flange width 240 mm (9.45 in). Cross-sectional area: 22,000 mm². Moment of inertia Ix = 257,583.333 cm⁴, Iy = 5,773.021 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	850 mm	33.46 in
Width (b)	240 mm	9.45 in
Web thickness (tw)	12.5 mm	0.49 in
Flange thickness (tf)	25 mm	0.98 in
Weight	172.7 kg/m	116.05 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	22,000 mm²	34.100 in²
Moment of inertia (Ix)	257,583.33 cm⁴	6188.44 in⁴
Moment of inertia (Iy)	5,773.02 cm⁴	138.70 in⁴
Elastic section modulus (Sx)	6,060.78 cm³	369.853 in³
Elastic section modulus (Sy)	481.09 cm³	29.358 in³
Plastic section modulus (Zx)	6,950 cm³	424.117 in³
Plastic section modulus (Zy)	751.25 cm³	45.844 in³
Radius of gyration (rx)	34.22 cm	13.471 in
Radius of gyration (ry)	5.12 cm	2.017 in