CS 650x330 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 650x330 (México) · Doble T CS 650x330 (Argentina / LATAM) · UB 650 (UK / Australia)

The CS 650x330 steel profile weighs 330.5 kg/m (222.09 lb/ft), has a depth of 650 mm (25.59 in), flange width 650 mm (25.59 in). Cross-sectional area: 42,100 mm². Moment of inertia Ix = 346,352.083 cm⁴, Iy = 114,447.563 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)	25 mm	0.98 in
Weight	330.5 kg/m	222.09 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	42,100 mm²	65.255 in²
Moment of inertia (Ix)	346,352.08 cm⁴	8321.11 in⁴
Moment of inertia (Iy)	114,447.56 cm⁴	2749.60 in⁴
Elastic section modulus (Sx)	10,656.99 cm³	650.332 in³
Elastic section modulus (Sy)	3,521.46 cm³	214.894 in³
Plastic section modulus (Zx)	11,596.25 cm³	707.650 in³
Plastic section modulus (Zy)	5,319.65 cm³	324.626 in³
Radius of gyration (rx)	28.68 cm	11.292 in
Radius of gyration (ry)	16.49 cm	6.491 in