I 400x150x4x6 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 400x150x4x6 (México) · Doble T I 400x150x4x6 (Argentina / LATAM) · UB 400 (UK / Australia)

The I 400x150x4x6 steel profile weighs 26.3 kg/m (17.67 lb/ft), has a depth of 400 mm (15.75 in), flange width 150 mm (5.91 in). Cross-sectional area: 3,352 mm². Moment of inertia Ix = 8,933.196 cm⁴, Iy = 337.707 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	400 mm	15.75 in
Width (b)	150 mm	5.91 in
Web thickness (tw)	4 mm	0.16 in
Flange thickness (tf)	6 mm	0.24 in
Weight	26.3 kg/m	17.67 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,352 mm²	5.196 in²
Moment of inertia (Ix)	8,933.2 cm⁴	214.62 in⁴
Moment of inertia (Iy)	337.71 cm⁴	8.11 in⁴
Elastic section modulus (Sx)	446.66 cm³	27.257 in³
Elastic section modulus (Sy)	45.03 cm³	2.748 in³
Plastic section modulus (Zx)	505.14 cm³	30.826 in³
Plastic section modulus (Zy)	69.05 cm³	4.214 in³
Radius of gyration (rx)	16.32 cm	6.427 in
Radius of gyration (ry)	3.17 cm	1.250 in