I 400x400x22.2x30 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.

Also known as: I 400x400x22.2x30 (México) · Doble T I 400x400x22.2x30 (Argentina / LATAM) · UB 400 (UK / Australia)

The I 400x400x22.2x30 steel profile weighs 247.7 kg/m (166.42 lb/ft), has a depth of 400 mm (15.75 in), flange width 400 mm (15.75 in). Cross-sectional area: 31,548 mm². Moment of inertia Ix = 89,591.24 cm⁴, Iy = 32,031 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)	22.2 mm	0.87 in
Flange thickness (tf)	30 mm	1.18 in
Weight	247.7 kg/m	166.42 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	31,548 mm²	48.899 in²
Moment of inertia (Ix)	89,591.24 cm⁴	2152.43 in⁴
Moment of inertia (Iy)	32,031 cm⁴	769.54 in⁴
Elastic section modulus (Sx)	4,479.56 cm³	273.361 in³
Elastic section modulus (Sy)	1,601.55 cm³	97.733 in³
Plastic section modulus (Zx)	5,081.58 cm³	310.098 in³
Plastic section modulus (Zy)	2,441.89 cm³	149.014 in³
Radius of gyration (rx)	16.85 cm	6.635 in
Radius of gyration (ry)	10.08 cm	3.967 in