I 400x400x16x32 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 400x400x16x32 (México) · Doble T I 400x400x16x32 (Argentina / LATAM) · UB 400 (UK / Australia)

The I 400x400x16x32 steel profile weighs 243.2 kg/m (163.42 lb/ft), has a depth of 400 mm (15.75 in), flange width 400 mm (15.75 in). Cross-sectional area: 30,976 mm². Moment of inertia Ix = 91,947.554 cm⁴, Iy = 34,144.802 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)	16 mm	0.63 in
Flange thickness (tf)	32 mm	1.26 in
Weight	243.2 kg/m	163.42 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	30,976 mm²	48.013 in²
Moment of inertia (Ix)	91,947.55 cm⁴	2209.04 in⁴
Moment of inertia (Iy)	34,144.8 cm⁴	820.33 in⁴
Elastic section modulus (Sx)	4,597.38 cm³	280.550 in³
Elastic section modulus (Sy)	1,707.24 cm³	104.183 in³
Plastic section modulus (Zx)	5,161.98 cm³	315.005 in³
Plastic section modulus (Zy)	2,581.5 cm³	157.534 in³
Radius of gyration (rx)	17.23 cm	6.783 in
Radius of gyration (ry)	10.5 cm	4.133 in