I 300x100x4x10 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 300x100x4x10 (México) · Doble T I 300x100x4x10 (Argentina / LATAM) · UB 300 (UK / Australia)

The I 300x100x4x10 steel profile weighs 24.5 kg/m (16.46 lb/ft), has a depth of 300 mm (11.81 in), flange width 100 mm (3.94 in). Cross-sectional area: 3,120 mm². Moment of inertia Ix = 4,938.4 cm⁴, Iy = 166.816 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)	10 mm	0.39 in
Weight	24.5 kg/m	16.46 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,120 mm²	4.836 in²
Moment of inertia (Ix)	4,938.4 cm⁴	118.65 in⁴
Moment of inertia (Iy)	166.82 cm⁴	4.01 in⁴
Elastic section modulus (Sx)	329.23 cm³	20.091 in³
Elastic section modulus (Sy)	33.36 cm³	2.036 in³
Plastic section modulus (Zx)	368.4 cm³	22.481 in³
Plastic section modulus (Zy)	51.12 cm³	3.120 in³
Radius of gyration (rx)	12.58 cm	4.953 in
Radius of gyration (ry)	2.31 cm	0.910 in