I 300x100x4x6 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 300x100x4x6 (México) · Doble T I 300x100x4x6 (Argentina / LATAM) · UB 300 (UK / Australia)

The I 300x100x4x6 steel profile weighs 18.4 kg/m (12.40 lb/ft), has a depth of 300 mm (11.81 in), flange width 100 mm (3.94 in). Cross-sectional area: 2,352 mm². Moment of inertia Ix = 3,389.702 cm⁴, Iy = 100.154 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	100 mm	3.94 in
Web thickness (tw)	4 mm	0.16 in
Flange thickness (tf)	6 mm	0.24 in
Weight	18.4 kg/m	12.40 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,352 mm²	3.646 in²
Moment of inertia (Ix)	3,389.7 cm⁴	81.44 in⁴
Moment of inertia (Iy)	100.15 cm⁴	2.41 in⁴
Elastic section modulus (Sx)	225.98 cm³	13.790 in³
Elastic section modulus (Sy)	20.03 cm³	1.222 in³
Plastic section modulus (Zx)	259.34 cm³	15.826 in³
Plastic section modulus (Zy)	31.15 cm³	1.901 in³
Radius of gyration (rx)	12 cm	4.726 in
Radius of gyration (ry)	2.06 cm	0.812 in