I 300x200x4x12 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 300x200x4x12 (México) · Doble T I 300x200x4x12 (Argentina / LATAM) · UB 300 (UK / Australia)

The I 300x200x4x12 steel profile weighs 46.3 kg/m (31.13 lb/ft), has a depth of 300 mm (11.81 in), flange width 200 mm (7.87 in). Cross-sectional area: 5,904 mm². Moment of inertia Ix = 10,659.859 cm⁴, Iy = 1,600.147 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)	4 mm	0.16 in
Flange thickness (tf)	12 mm	0.47 in
Weight	46.3 kg/m	31.13 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,904 mm²	9.151 in²
Moment of inertia (Ix)	10,659.86 cm⁴	256.10 in⁴
Moment of inertia (Iy)	1,600.15 cm⁴	38.44 in⁴
Elastic section modulus (Sx)	710.66 cm³	43.367 in³
Elastic section modulus (Sy)	160.01 cm³	9.765 in³
Plastic section modulus (Zx)	767.38 cm³	46.828 in³
Plastic section modulus (Zy)	241.1 cm³	14.713 in³
Radius of gyration (rx)	13.44 cm	5.290 in
Radius of gyration (ry)	5.21 cm	2.050 in