I 300x300x10x20 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 300x300x10x20 (México) · Doble T I 300x300x10x20 (Argentina / LATAM) · UB 300 (UK / Australia)

The I 300x300x10x20 steel profile weighs 114.6 kg/m (77.02 lb/ft), has a depth of 300 mm (11.81 in), flange width 300 mm (11.81 in). Cross-sectional area: 14,600 mm². Moment of inertia Ix = 25,024.667 cm⁴, Iy = 9,002.167 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	10 mm	0.39 in
Flange thickness (tf)	20 mm	0.79 in
Weight	114.6 kg/m	77.02 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	14,600 mm²	22.630 in²
Moment of inertia (Ix)	25,024.67 cm⁴	601.22 in⁴
Moment of inertia (Iy)	9,002.17 cm⁴	216.28 in⁴
Elastic section modulus (Sx)	1,668.31 cm³	101.807 in³
Elastic section modulus (Sy)	600.14 cm³	36.623 in³
Plastic section modulus (Zx)	1,849 cm³	112.833 in³
Plastic section modulus (Zy)	906.5 cm³	55.318 in³
Radius of gyration (rx)	13.09 cm	5.154 in
Radius of gyration (ry)	7.85 cm	3.091 in