I 400x300x6x16 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 400x300x6x16 (México) · Doble T I 400x300x6x16 (Argentina / LATAM) · UB 400 (UK / Australia)

The I 400x300x6x16 steel profile weighs 92.7 kg/m (62.30 lb/ft), has a depth of 400 mm (15.75 in), flange width 300 mm (11.81 in). Cross-sectional area: 11,808 mm². Moment of inertia Ix = 37,901.722 cm⁴, Iy = 7,200.662 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)	16 mm	0.63 in
Weight	92.7 kg/m	62.30 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	11,808 mm²	18.302 in²
Moment of inertia (Ix)	37,901.72 cm⁴	910.59 in⁴
Moment of inertia (Iy)	7,200.66 cm⁴	173.00 in⁴
Elastic section modulus (Sx)	1,895.09 cm³	115.646 in³
Elastic section modulus (Sy)	480.04 cm³	29.294 in³
Plastic section modulus (Zx)	2,046.34 cm³	124.876 in³
Plastic section modulus (Zy)	723.31 cm³	44.139 in³
Radius of gyration (rx)	17.92 cm	7.054 in
Radius of gyration (ry)	7.81 cm	3.074 in