I 400x400x12x22 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 400x400x12x22 (México) · Doble T I 400x400x12x22 (Argentina / LATAM) · UB 400 (UK / Australia)

The I 400x400x12x22 steel profile weighs 171.7 kg/m (115.37 lb/ft), has a depth of 400 mm (15.75 in), flange width 400 mm (15.75 in). Cross-sectional area: 21,872 mm². Moment of inertia Ix = 67,451.748 cm⁴, Iy = 23,471.793 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)	12 mm	0.47 in
Flange thickness (tf)	22 mm	0.87 in
Weight	171.7 kg/m	115.37 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	21,872 mm²	33.902 in²
Moment of inertia (Ix)	67,451.75 cm⁴	1620.53 in⁴
Moment of inertia (Iy)	23,471.79 cm⁴	563.91 in⁴
Elastic section modulus (Sx)	3,372.59 cm³	205.809 in³
Elastic section modulus (Sy)	1,173.59 cm³	71.617 in³
Plastic section modulus (Zx)	3,706.61 cm³	226.192 in³
Plastic section modulus (Zy)	1,772.82 cm³	108.184 in³
Radius of gyration (rx)	17.56 cm	6.914 in
Radius of gyration (ry)	10.36 cm	4.078 in