I 300x300x8x10 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 300x300x8x10 (México) · Doble T I 300x300x8x10 (Argentina / LATAM) · UB 300 (UK / Australia)

The I 300x300x8x10 steel profile weighs 64.7 kg/m (43.46 lb/ft), has a depth of 300 mm (11.81 in), flange width 300 mm (11.81 in). Cross-sectional area: 8,240 mm². Moment of inertia Ix = 14,083.467 cm⁴, Iy = 4,501.195 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)	8 mm	0.31 in
Flange thickness (tf)	10 mm	0.39 in
Weight	64.7 kg/m	43.46 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,240 mm²	12.772 in²
Moment of inertia (Ix)	14,083.47 cm⁴	338.36 in⁴
Moment of inertia (Iy)	4,501.19 cm⁴	108.14 in⁴
Elastic section modulus (Sx)	938.9 cm³	57.295 in³
Elastic section modulus (Sy)	300.08 cm³	18.312 in³
Plastic section modulus (Zx)	1,026.8 cm³	62.659 in³
Plastic section modulus (Zy)	454.48 cm³	27.734 in³
Radius of gyration (rx)	13.07 cm	5.147 in
Radius of gyration (ry)	7.39 cm	2.910 in