I 500x500x18x35 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 500x500x18x35 (México) · Doble T I 500x500x18x35 (Argentina / LATAM) · UB 500 (UK / Australia)

The I 500x500x18x35 steel profile weighs 335.5 kg/m (225.46 lb/ft), has a depth of 500 mm (19.69 in), flange width 500 mm (19.69 in). Cross-sectional area: 42,740 mm². Moment of inertia Ix = 201,480.217 cm⁴, Iy = 72,937.565 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	500 mm	19.69 in
Width (b)	500 mm	19.69 in
Web thickness (tw)	18 mm	0.71 in
Flange thickness (tf)	35 mm	1.38 in
Weight	335.5 kg/m	225.46 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	42,740 mm²	66.247 in²
Moment of inertia (Ix)	201,480.22 cm⁴	4840.56 in⁴
Moment of inertia (Iy)	72,937.56 cm⁴	1752.32 in⁴
Elastic section modulus (Sx)	8,059.21 cm³	491.805 in³
Elastic section modulus (Sy)	2,917.5 cm³	178.038 in³
Plastic section modulus (Zx)	8,969.55 cm³	547.358 in³
Plastic section modulus (Zy)	4,409.83 cm³	269.105 in³
Radius of gyration (rx)	21.71 cm	8.548 in
Radius of gyration (ry)	13.06 cm	5.143 in