I 500x300x8x18 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 500x300x8x18 (México) · Doble T I 500x300x8x18 (Argentina / LATAM) · UB 500 (UK / Australia)

The I 500x300x8x18 steel profile weighs 113.9 kg/m (76.54 lb/ft), has a depth of 500 mm (19.69 in), flange width 300 mm (11.81 in). Cross-sectional area: 14,512 mm². Moment of inertia Ix = 69,416.463 cm⁴, Iy = 8,101.98 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	500 mm	19.69 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	8 mm	0.31 in
Flange thickness (tf)	18 mm	0.71 in
Weight	113.9 kg/m	76.54 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	14,512 mm²	22.494 in²
Moment of inertia (Ix)	69,416.46 cm⁴	1667.73 in⁴
Moment of inertia (Iy)	8,101.98 cm⁴	194.65 in⁴
Elastic section modulus (Sx)	2,776.66 cm³	169.443 in³
Elastic section modulus (Sy)	540.13 cm³	32.961 in³
Plastic section modulus (Zx)	3,033.39 cm³	185.110 in³
Plastic section modulus (Zy)	817.42 cm³	49.882 in³
Radius of gyration (rx)	21.87 cm	8.611 in
Radius of gyration (ry)	7.47 cm	2.942 in