CS 650x305 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 650x305 (México) · Doble T CS 650x305 (Argentina / LATAM) · UB 650 (UK / Australia)

The CS 650x305 steel profile weighs 304.6 kg/m (204.68 lb/ft), has a depth of 650 mm (25.59 in), flange width 650 mm (25.59 in). Cross-sectional area: 38,803.2 mm². Moment of inertia Ix = 316,422.99 cm⁴, Iy = 102,547.324 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	650 mm	25.59 in
Width (b)	650 mm	25.59 in
Web thickness (tw)	16 mm	0.63 in
Flange thickness (tf)	22.4 mm	0.88 in
Weight	304.6 kg/m	204.68 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	38,803.2 mm²	60.145 in²
Moment of inertia (Ix)	316,422.99 cm⁴	7602.06 in⁴
Moment of inertia (Iy)	102,547.32 cm⁴	2463.70 in⁴
Elastic section modulus (Sx)	9,736.09 cm³	594.135 in³
Elastic section modulus (Sy)	3,155.3 cm³	192.549 in³
Plastic section modulus (Zx)	10,602.92 cm³	647.033 in³
Plastic section modulus (Zy)	4,770.73 cm³	291.129 in³
Radius of gyration (rx)	28.56 cm	11.243 in
Radius of gyration (ry)	16.26 cm	6.400 in