I 400x250x6x12 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 400x250x6x12 (México) · Doble T I 400x250x6x12 (Argentina / LATAM) · UB 400 (UK / Australia)

The I 400x250x6x12 steel profile weighs 64.8 kg/m (43.57 lb/ft), has a depth of 400 mm (15.75 in), flange width 250 mm (9.84 in). Cross-sectional area: 8,256 mm². Moment of inertia Ix = 25,246.669 cm⁴, Iy = 3,125.677 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	400 mm	15.75 in
Width (b)	250 mm	9.84 in
Web thickness (tw)	6 mm	0.24 in
Flange thickness (tf)	12 mm	0.47 in
Weight	64.8 kg/m	43.57 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,256 mm²	12.797 in²
Moment of inertia (Ix)	25,246.67 cm⁴	606.55 in⁴
Moment of inertia (Iy)	3,125.68 cm⁴	75.09 in⁴
Elastic section modulus (Sx)	1,262.33 cm³	77.033 in³
Elastic section modulus (Sy)	250.05 cm³	15.259 in³
Plastic section modulus (Zx)	1,376.06 cm³	83.973 in³
Plastic section modulus (Zy)	378.38 cm³	23.091 in³
Radius of gyration (rx)	17.49 cm	6.885 in
Radius of gyration (ry)	6.15 cm	2.422 in