CS 250x79 Usiminas · Weight & Dimensions

Usiminas, 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.

Also known as: CS 250x79 (México) · Doble T CS 250x79 (Argentina / LATAM) · UB 250 (UK / Australia)

The CS 250x79 steel profile weighs 79.0 kg/m (53.12 lb/ft), has a depth of 250 mm (9.84 in), flange width 250 mm (9.84 in). Cross-sectional area: 10,071 mm². Moment of inertia Ix = 11,788.452 cm⁴, Iy = 4,168.224 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	250 mm	9.84 in
Width (b)	250 mm	9.84 in
Web thickness (tw)	9.5 mm	0.37 in
Flange thickness (tf)	16 mm	0.63 in
Weight	79.0 kg/m	53.12 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,071 mm²	15.610 in²
Moment of inertia (Ix)	11,788.45 cm⁴	283.22 in⁴
Moment of inertia (Iy)	4,168.22 cm⁴	100.14 in⁴
Elastic section modulus (Sx)	943.08 cm³	57.550 in³
Elastic section modulus (Sy)	333.46 cm³	20.349 in³
Plastic section modulus (Zx)	1,048.87 cm³	64.006 in³
Plastic section modulus (Zy)	504.92 cm³	30.812 in³
Radius of gyration (rx)	10.82 cm	4.259 in
Radius of gyration (ry)	6.43 cm	2.533 in