CS 500x312 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 500x312 (México) · Doble T CS 500x312 (Argentina / LATAM) · UB 500 (UK / Australia)

The CS 500x312 steel profile weighs 312.4 kg/m (209.95 lb/ft), has a depth of 500 mm (19.69 in), flange width 500 mm (19.69 in). Cross-sectional area: 39,803 mm². Moment of inertia Ix = 186,324.076 cm⁴, Iy = 65,649.978 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	500 mm	19.69 in
Width (b)	500 mm	19.69 in
Web thickness (tw)	19 mm	0.75 in
Flange thickness (tf)	31.5 mm	1.24 in
Weight	312.4 kg/m	209.95 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	39,803 mm²	61.695 in²
Moment of inertia (Ix)	186,324.08 cm⁴	4476.44 in⁴
Moment of inertia (Iy)	65,649.98 cm⁴	1577.24 in⁴
Elastic section modulus (Sx)	7,452.96 cm³	454.810 in³
Elastic section modulus (Sy)	2,626 cm³	160.249 in³
Plastic section modulus (Zx)	8,285.98 cm³	505.644 in³
Plastic section modulus (Zy)	3,976.94 cm³	242.689 in³
Radius of gyration (rx)	21.64 cm	8.518 in
Radius of gyration (ry)	12.84 cm	5.056 in