I 400x300x6x10 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 400x300x6x10 (México) · Doble T I 400x300x6x10 (Argentina / LATAM) · UB 400 (UK / Australia)

The I 400x300x6x10 steel profile weighs 65.0 kg/m (43.68 lb/ft), has a depth of 400 mm (15.75 in), flange width 300 mm (11.81 in). Cross-sectional area: 8,280 mm². Moment of inertia Ix = 25,563.6 cm⁴, Iy = 4,500.684 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	400 mm	15.75 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	6 mm	0.24 in
Flange thickness (tf)	10 mm	0.39 in
Weight	65.0 kg/m	43.68 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,280 mm²	12.834 in²
Moment of inertia (Ix)	25,563.6 cm⁴	614.17 in⁴
Moment of inertia (Iy)	4,500.68 cm⁴	108.13 in⁴
Elastic section modulus (Sx)	1,278.18 cm³	78.000 in³
Elastic section modulus (Sy)	300.05 cm³	18.310 in³
Plastic section modulus (Zx)	1,386.6 cm³	84.616 in³
Plastic section modulus (Zy)	453.42 cm³	27.670 in³
Radius of gyration (rx)	17.57 cm	6.918 in
Radius of gyration (ry)	7.37 cm	2.903 in