I 300x150x4x12 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 300x150x4x12 (México) · Doble T I 300x150x4x12 (Argentina / LATAM) · UB 300 (UK / Australia)

The I 300x150x4x12 steel profile weighs 36.9 kg/m (24.80 lb/ft), has a depth of 300 mm (11.81 in), flange width 150 mm (5.91 in). Cross-sectional area: 4,704 mm². Moment of inertia Ix = 8,170.099 cm⁴, Iy = 675.147 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	150 mm	5.91 in
Web thickness (tw)	4 mm	0.16 in
Flange thickness (tf)	12 mm	0.47 in
Weight	36.9 kg/m	24.80 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,704 mm²	7.291 in²
Moment of inertia (Ix)	8,170.1 cm⁴	196.29 in⁴
Moment of inertia (Iy)	675.15 cm⁴	16.22 in⁴
Elastic section modulus (Sx)	544.67 cm³	33.238 in³
Elastic section modulus (Sy)	90.02 cm³	5.493 in³
Plastic section modulus (Zx)	594.58 cm³	36.283 in³
Plastic section modulus (Zy)	136.1 cm³	8.306 in³
Radius of gyration (rx)	13.18 cm	5.189 in
Radius of gyration (ry)	3.79 cm	1.492 in