I 450x100x5x8 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 450x100x5x8 (México) · Doble T I 450x100x5x8 (Argentina / LATAM) · UB 450 (UK / Australia)

The I 450x100x5x8 steel profile weighs 29.6 kg/m (19.88 lb/ft), has a depth of 450 mm (17.72 in), flange width 100 mm (3.94 in). Cross-sectional area: 3,770 mm². Moment of inertia Ix = 11,221.518 cm⁴, Iy = 133.785 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	450 mm	17.72 in
Width (b)	100 mm	3.94 in
Web thickness (tw)	5 mm	0.20 in
Flange thickness (tf)	8 mm	0.31 in
Weight	29.6 kg/m	19.88 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,770 mm²	5.844 in²
Moment of inertia (Ix)	11,221.52 cm⁴	269.60 in⁴
Moment of inertia (Iy)	133.79 cm⁴	3.21 in⁴
Elastic section modulus (Sx)	498.73 cm³	30.435 in³
Elastic section modulus (Sy)	26.76 cm³	1.633 in³
Plastic section modulus (Zx)	589.05 cm³	35.946 in³
Plastic section modulus (Zy)	42.71 cm³	2.606 in³
Radius of gyration (rx)	17.25 cm	6.792 in
Radius of gyration (ry)	1.88 cm	0.742 in