I 450x300x8x28 Cintac · Weight & Dimensions

Cintac, 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: I 450x300x8x28 (México) · Doble T I 450x300x8x28 (Argentina / LATAM) · UB 450 (UK / Australia)

The I 450x300x8x28 steel profile weighs 156.6 kg/m (105.24 lb/ft), has a depth of 450 mm (17.72 in), flange width 300 mm (11.81 in). Cross-sectional area: 19,952 mm². Moment of inertia Ix = 78,982.572 cm⁴, Iy = 12,601.681 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	450 mm	17.72 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	8 mm	0.31 in
Flange thickness (tf)	28 mm	1.10 in
Weight	156.6 kg/m	105.24 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	19,952 mm²	30.926 in²
Moment of inertia (Ix)	78,982.57 cm⁴	1897.56 in⁴
Moment of inertia (Iy)	12,601.68 cm⁴	302.76 in⁴
Elastic section modulus (Sx)	3,510.34 cm³	214.215 in³
Elastic section modulus (Sy)	840.11 cm³	51.267 in³
Plastic section modulus (Zx)	3,855.27 cm³	235.264 in³
Plastic section modulus (Zy)	1,266.3 cm³	77.275 in³
Radius of gyration (rx)	19.9 cm	7.833 in
Radius of gyration (ry)	7.95 cm	3.129 in