CS 400x176 Usiminas · Weight & Dimensions

Usiminas, 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: CS 400x176 (México) · Doble T CS 400x176 (Argentina / LATAM) · UB 400 (UK / Australia)

The CS 400x176 steel profile weighs 175.5 kg/m (117.96 lb/ft), has a depth of 400 mm (15.75 in), flange width 400 mm (15.75 in). Cross-sectional area: 22,360 mm². Moment of inertia Ix = 68,619.738 cm⁴, Iy = 23,899.115 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)	12.5 mm	0.49 in
Flange thickness (tf)	22.4 mm	0.88 in
Weight	175.5 kg/m	117.96 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	22,360 mm²	34.658 in²
Moment of inertia (Ix)	68,619.74 cm⁴	1648.59 in⁴
Moment of inertia (Iy)	23,899.11 cm⁴	574.18 in⁴
Elastic section modulus (Sx)	3,430.99 cm³	209.373 in³
Elastic section modulus (Sy)	1,194.96 cm³	72.921 in³
Plastic section modulus (Zx)	3,777.57 cm³	230.522 in³
Plastic section modulus (Zy)	1,805.88 cm³	110.202 in³
Radius of gyration (rx)	17.52 cm	6.897 in
Radius of gyration (ry)	10.34 cm	4.070 in