CS 400x201 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 400x201 (México) · Doble T CS 400x201 (Argentina / LATAM) · UB 400 (UK / Australia)

The CS 400x201 steel profile weighs 201.0 kg/m (135.05 lb/ft), has a depth of 400 mm (15.75 in), flange width 400 mm (15.75 in). Cross-sectional area: 25,600 mm². Moment of inertia Ix = 76,133.333 cm⁴, Iy = 26,678.613 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)	16 mm	0.63 in
Flange thickness (tf)	25 mm	0.98 in
Weight	201.0 kg/m	135.05 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	25,600 mm²	39.680 in²
Moment of inertia (Ix)	76,133.33 cm⁴	1829.10 in⁴
Moment of inertia (Iy)	26,678.61 cm⁴	640.95 in⁴
Elastic section modulus (Sx)	3,806.67 cm³	232.298 in³
Elastic section modulus (Sy)	1,333.93 cm³	81.402 in³
Plastic section modulus (Zx)	4,240 cm³	258.742 in³
Plastic section modulus (Zy)	2,022.4 cm³	123.415 in³
Radius of gyration (rx)	17.25 cm	6.789 in
Radius of gyration (ry)	10.21 cm	4.019 in