CS 300x122 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 300x122 (México) · Doble T CS 300x122 (Argentina / LATAM) · UB 300 (UK / Australia)

The CS 300x122 steel profile weighs 122.4 kg/m (82.24 lb/ft), has a depth of 300 mm (11.81 in), flange width 300 mm (11.81 in). Cross-sectional area: 15,592 mm². Moment of inertia Ix = 24,936.144 cm⁴, Iy = 8,558.943 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	16 mm	0.63 in
Flange thickness (tf)	19 mm	0.75 in
Weight	122.4 kg/m	82.24 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	15,592 mm²	24.168 in²
Moment of inertia (Ix)	24,936.14 cm⁴	599.09 in⁴
Moment of inertia (Iy)	8,558.94 cm⁴	205.63 in⁴
Elastic section modulus (Sx)	1,662.41 cm³	101.447 in³
Elastic section modulus (Sy)	570.6 cm³	34.820 in³
Plastic section modulus (Zx)	1,876.28 cm³	114.498 in³
Plastic section modulus (Zy)	871.77 cm³	53.199 in³
Radius of gyration (rx)	12.65 cm	4.979 in
Radius of gyration (ry)	7.41 cm	2.917 in