CS 650x425 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 650x425 (México) · Doble T CS 650x425 (Argentina / LATAM) · UB 650 (UK / Australia)

The CS 650x425 steel profile weighs 424.7 kg/m (285.39 lb/ft), has a depth of 650 mm (25.59 in), flange width 650 mm (25.59 in). Cross-sectional area: 54,098.8 mm². Moment of inertia Ix = 429,721.808 cm⁴, Iy = 144,233.105 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)	22.4 mm	0.88 in
Flange thickness (tf)	31.5 mm	1.24 in
Weight	424.7 kg/m	285.39 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	54,098.8 mm²	83.853 in²
Moment of inertia (Ix)	429,721.81 cm⁴	10324.07 in⁴
Moment of inertia (Iy)	144,233.1 cm⁴	3465.20 in⁴
Elastic section modulus (Sx)	13,222.21 cm³	806.872 in³
Elastic section modulus (Sy)	4,437.94 cm³	270.821 in³
Plastic section modulus (Zx)	14,593.37 cm³	890.546 in³
Plastic section modulus (Zy)	6,728.01 cm³	410.570 in³
Radius of gyration (rx)	28.18 cm	11.096 in
Radius of gyration (ry)	16.33 cm	6.428 in