I 400x250x6x8 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 400x250x6x8 (México) · Doble T I 400x250x6x8 (Argentina / LATAM) · UB 400 (UK / Australia)

The I 400x250x6x8 steel profile weighs 49.5 kg/m (33.24 lb/ft), has a depth of 400 mm (15.75 in), flange width 250 mm (9.84 in). Cross-sectional area: 6,304 mm². Moment of inertia Ix = 18,199.689 cm⁴, Iy = 2,084.025 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)	8 mm	0.31 in
Weight	49.5 kg/m	33.24 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,304 mm²	9.771 in²
Moment of inertia (Ix)	18,199.69 cm⁴	437.25 in⁴
Moment of inertia (Iy)	2,084.02 cm⁴	50.07 in⁴
Elastic section modulus (Sx)	909.98 cm³	55.531 in³
Elastic section modulus (Sy)	166.72 cm³	10.174 in³
Plastic section modulus (Zx)	1,005.18 cm³	61.340 in³
Plastic section modulus (Zy)	253.46 cm³	15.467 in³
Radius of gyration (rx)	16.99 cm	6.689 in
Radius of gyration (ry)	5.75 cm	2.264 in