I 450x300x8x10 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 450x300x8x10 (México) · Doble T I 450x300x8x10 (Argentina / LATAM) · UB 450 (UK / Australia)

The I 450x300x8x10 steel profile weighs 74.1 kg/m (49.80 lb/ft), has a depth of 450 mm (17.72 in), flange width 300 mm (11.81 in). Cross-sectional area: 9,440 mm². Moment of inertia Ix = 34,345.467 cm⁴, Iy = 4,501.835 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)	10 mm	0.39 in
Weight	74.1 kg/m	49.80 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,440 mm²	14.632 in²
Moment of inertia (Ix)	34,345.47 cm⁴	825.15 in⁴
Moment of inertia (Iy)	4,501.83 cm⁴	108.16 in⁴
Elastic section modulus (Sx)	1,526.47 cm³	93.151 in³
Elastic section modulus (Sy)	300.12 cm³	18.315 in³
Plastic section modulus (Zx)	1,689.8 cm³	103.118 in³
Plastic section modulus (Zy)	456.88 cm³	27.881 in³
Radius of gyration (rx)	19.07 cm	7.510 in
Radius of gyration (ry)	6.91 cm	2.719 in