I 450x300x8x16 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 450x300x8x16 (México) · Doble T I 450x300x8x16 (Argentina / LATAM) · UB 450 (UK / Australia)

The I 450x300x8x16 steel profile weighs 101.6 kg/m (68.26 lb/ft), has a depth of 450 mm (17.72 in), flange width 300 mm (11.81 in). Cross-sectional area: 12,944 mm². Moment of inertia Ix = 50,094.895 cm⁴, Iy = 7,201.783 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)	16 mm	0.63 in
Weight	101.6 kg/m	68.26 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,944 mm²	20.063 in²
Moment of inertia (Ix)	50,094.9 cm⁴	1203.53 in⁴
Moment of inertia (Iy)	7,201.78 cm⁴	173.02 in⁴
Elastic section modulus (Sx)	2,226.44 cm³	135.866 in³
Elastic section modulus (Sy)	480.12 cm³	29.299 in³
Plastic section modulus (Zx)	2,432.65 cm³	148.450 in³
Plastic section modulus (Zy)	726.69 cm³	44.345 in³
Radius of gyration (rx)	19.67 cm	7.745 in
Radius of gyration (ry)	7.46 cm	2.937 in