I 400x150x5x12 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 400x150x5x12 (México) · Doble T I 400x150x5x12 (Argentina / LATAM) · UB 400 (UK / Australia)

The I 400x150x5x12 steel profile weighs 43.0 kg/m (28.91 lb/ft), has a depth of 400 mm (15.75 in), flange width 150 mm (5.91 in). Cross-sectional area: 5,480 mm². Moment of inertia Ix = 15,768.171 cm⁴, Iy = 675.392 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)	5 mm	0.20 in
Flange thickness (tf)	12 mm	0.47 in
Weight	43.0 kg/m	28.91 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,480 mm²	8.494 in²
Moment of inertia (Ix)	15,768.17 cm⁴	378.83 in⁴
Moment of inertia (Iy)	675.39 cm⁴	16.23 in⁴
Elastic section modulus (Sx)	788.41 cm³	48.112 in³
Elastic section modulus (Sy)	90.05 cm³	5.495 in³
Plastic section modulus (Zx)	875.12 cm³	53.403 in³
Plastic section modulus (Zy)	137.35 cm³	8.382 in³
Radius of gyration (rx)	16.96 cm	6.678 in
Radius of gyration (ry)	3.51 cm	1.382 in