I 450x450x18x35 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 450x450x18x35 (México) · Doble T I 450x450x18x35 (Argentina / LATAM) · UB 450 (UK / Australia)

The I 450x450x18x35 steel profile weighs 301.0 kg/m (202.25 lb/ft), has a depth of 450 mm (17.72 in), flange width 450 mm (17.72 in). Cross-sectional area: 38,340 mm². Moment of inertia Ix = 144,179.55 cm⁴, Iy = 53,174.718 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)	18 mm	0.71 in
Flange thickness (tf)	35 mm	1.38 in
Weight	301.0 kg/m	202.25 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	38,340 mm²	59.427 in²
Moment of inertia (Ix)	144,179.55 cm⁴	3463.91 in⁴
Moment of inertia (Iy)	53,174.72 cm⁴	1277.52 in⁴
Elastic section modulus (Sx)	6,407.98 cm³	391.041 in³
Elastic section modulus (Sy)	2,363.32 cm³	144.219 in³
Plastic section modulus (Zx)	7,186.05 cm³	438.522 in³
Plastic section modulus (Zy)	3,574.53 cm³	218.132 in³
Radius of gyration (rx)	19.39 cm	7.635 in
Radius of gyration (ry)	11.78 cm	4.637 in