CS 300x115 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 300x115 (México) · Doble T CS 300x115 (Argentina / LATAM) · UB 300 (UK / Australia)

The CS 300x115 steel profile weighs 115.2 kg/m (77.44 lb/ft), has a depth of 300 mm (11.81 in), flange width 300 mm (11.81 in). Cross-sectional area: 14,675 mm². Moment of inertia Ix = 24,411.589 cm⁴, Iy = 8,554.264 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)	12.5 mm	0.49 in
Flange thickness (tf)	19 mm	0.75 in
Weight	115.2 kg/m	77.44 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	14,675 mm²	22.746 in²
Moment of inertia (Ix)	24,411.59 cm⁴	586.49 in⁴
Moment of inertia (Iy)	8,554.26 cm⁴	205.52 in⁴
Elastic section modulus (Sx)	1,627.44 cm³	99.313 in³
Elastic section modulus (Sy)	570.28 cm³	34.801 in³
Plastic section modulus (Zx)	1,816.21 cm³	110.833 in³
Plastic section modulus (Zy)	865.23 cm³	52.800 in³
Radius of gyration (rx)	12.9 cm	5.078 in
Radius of gyration (ry)	7.63 cm	3.006 in