CS 300x76 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 300x76 (México) · Doble T CS 300x76 (Argentina / LATAM) · UB 300 (UK / Australia)

The CS 300x76 steel profile weighs 76.1 kg/m (51.17 lb/ft), has a depth of 300 mm (11.81 in), flange width 300 mm (11.81 in). Cross-sectional area: 9,700 mm². Moment of inertia Ix = 16,894.271 cm⁴, Iy = 5,626.173 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)	8 mm	0.31 in
Flange thickness (tf)	12.5 mm	0.49 in
Weight	76.1 kg/m	51.17 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,700 mm²	15.035 in²
Moment of inertia (Ix)	16,894.27 cm⁴	405.88 in⁴
Moment of inertia (Iy)	5,626.17 cm⁴	135.17 in⁴
Elastic section modulus (Sx)	1,126.28 cm³	68.730 in³
Elastic section modulus (Sy)	375.08 cm³	22.889 in³
Plastic section modulus (Zx)	1,229.38 cm³	75.021 in³
Plastic section modulus (Zy)	566.9 cm³	34.595 in³
Radius of gyration (rx)	13.2 cm	5.196 in
Radius of gyration (ry)	7.62 cm	2.998 in