I 300x200x6x18 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 300x200x6x18 (México) · Doble T I 300x200x6x18 (Argentina / LATAM) · UB 300 (UK / Australia)

The I 300x200x6x18 steel profile weighs 68.9 kg/m (46.31 lb/ft), has a depth of 300 mm (11.81 in), flange width 200 mm (7.87 in). Cross-sectional area: 8,784 mm². Moment of inertia Ix = 15,253.747 cm⁴, Iy = 2,400.475 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	200 mm	7.87 in
Web thickness (tw)	6 mm	0.24 in
Flange thickness (tf)	18 mm	0.71 in
Weight	68.9 kg/m	46.31 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,784 mm²	13.615 in²
Moment of inertia (Ix)	15,253.75 cm⁴	366.47 in⁴
Moment of inertia (Iy)	2,400.48 cm⁴	57.67 in⁴
Elastic section modulus (Sx)	1,016.92 cm³	62.056 in³
Elastic section modulus (Sy)	240.05 cm³	14.649 in³
Plastic section modulus (Zx)	1,119.74 cm³	68.331 in³
Plastic section modulus (Zy)	362.38 cm³	22.114 in³
Radius of gyration (rx)	13.18 cm	5.188 in
Radius of gyration (ry)	5.23 cm	2.058 in