CS 450x291 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 450x291 (México) · Doble T CS 450x291 (Argentina / LATAM) · UB 450 (UK / Australia)

The CS 450x291 steel profile weighs 290.6 kg/m (195.29 lb/ft), has a depth of 450 mm (17.72 in), flange width 450 mm (17.72 in). Cross-sectional area: 37,018.8 mm². Moment of inertia Ix = 135,185.801 cm⁴, Iy = 47,876.872 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	450 mm	17.72 in
Width (b)	450 mm	17.72 in
Web thickness (tw)	22.4 mm	0.88 in
Flange thickness (tf)	31.5 mm	1.24 in
Weight	290.6 kg/m	195.29 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	37,018.8 mm²	57.379 in²
Moment of inertia (Ix)	135,185.8 cm⁴	3247.84 in⁴
Moment of inertia (Iy)	47,876.87 cm⁴	1150.24 in⁴
Elastic section modulus (Sx)	6,008.26 cm³	366.648 in³
Elastic section modulus (Sy)	2,127.86 cm³	129.851 in³
Plastic section modulus (Zx)	6,770.94 cm³	413.190 in³
Plastic section modulus (Zy)	3,237.92 cm³	197.591 in³
Radius of gyration (rx)	19.11 cm	7.523 in
Radius of gyration (ry)	11.37 cm	4.477 in