I 400x400x15.5x25 IAS · Weight & Dimensions

IAS, 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.

Put the I 400x400x15.5x25 IAS in a real structure

Opens in the 3D editor already set up as a beam, with supports and load. Change the span and the load, then check it against the code.

Free, and it opens without signing up.

Also known as: I 400x400x15.5x25 (México) · Doble T I 400x400x15.5x25 (Argentina / LATAM) · UB 400 (UK / Australia)

The I 400x400x15.5x25 steel profile weighs 199.6 kg/m (134.12 lb/ft), has a depth of 400 mm (15.75 in), flange width 400 mm (15.75 in). Cross-sectional area: 25,425 mm². Moment of inertia Ix = 75,954.688 cm⁴, Iy = 26,677.528 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	400 mm	15.75 in
Width (b)	400 mm	15.75 in
Web thickness (tw)	15.5 mm	0.61 in
Flange thickness (tf)	25 mm	0.98 in
Weight	199.6 kg/m	134.12 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	25,425 mm²	39.409 in²
Moment of inertia (Ix)	75,954.69 cm⁴	1824.81 in⁴
Moment of inertia (Iy)	26,677.53 cm⁴	640.93 in⁴
Elastic section modulus (Sx)	3,797.73 cm³	231.753 in³
Elastic section modulus (Sy)	1,333.88 cm³	81.398 in³
Plastic section modulus (Zx)	4,224.69 cm³	257.807 in³
Plastic section modulus (Zy)	2,021.02 cm³	123.331 in³
Radius of gyration (rx)	17.28 cm	6.805 in
Radius of gyration (ry)	10.24 cm	4.033 in