CS 650x395 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 650x395 (México) · Doble T CS 650x395 (Argentina / LATAM) · UB 650 (UK / Australia)

The CS 650x395 steel profile weighs 395.2 kg/m (265.55 lb/ft), has a depth of 650 mm (25.59 in), flange width 650 mm (25.59 in). Cross-sectional area: 50,342 mm². Moment of inertia Ix = 418,934.501 cm⁴, Iy = 144,198.161 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)	31.5 mm	1.24 in
Weight	395.2 kg/m	265.55 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	50,342 mm²	78.030 in²
Moment of inertia (Ix)	418,934.5 cm⁴	10064.90 in⁴
Moment of inertia (Iy)	144,198.16 cm⁴	3464.36 in⁴
Elastic section modulus (Sx)	12,890.29 cm³	786.617 in³
Elastic section modulus (Sy)	4,436.87 cm³	270.755 in³
Plastic section modulus (Zx)	14,042.06 cm³	856.903 in³
Plastic section modulus (Zy)	6,691.94 cm³	408.369 in³
Radius of gyration (rx)	28.85 cm	11.357 in
Radius of gyration (ry)	16.92 cm	6.663 in