W 404 x 75,5 KS · Weight & Dimensions

KS, hot-rolled 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: IPR 404 x 75,5 (México) · Doble T 404 x 75,5 (Argentina / LATAM) · UB 404 (UK / Australia)

The W 404 x 75,5 steel profile weighs 75.5 kg/m (50.73 lb/ft), has a depth of 404 mm (15.91 in), flange width 201 mm (7.91 in). Cross-sectional area: 9,615.752 mm². Moment of inertia Ix = 27,486.026 cm⁴, Iy = 2,034.053 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	404 mm	15.91 in
Width (b)	201 mm	7.91 in
Web thickness (tw)	9 mm	0.35 in
Flange thickness (tf)	15 mm	0.59 in
Fillet radius (r)	16 mm	0.63 in
Weight	75.5 kg/m	50.73 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,615.75 mm²	14.904 in²
Moment of inertia (Ix)	27,486.03 cm⁴	660.35 in⁴
Moment of inertia (Iy)	2,034.05 cm⁴	48.87 in⁴
Elastic section modulus (Sx)	1,360.69 cm³	83.035 in³
Elastic section modulus (Sy)	202.39 cm³	12.351 in³
Plastic section modulus (Zx)	1,527.86 cm³	93.236 in³
Plastic section modulus (Zy)	312.36 cm³	19.061 in³
Radius of gyration (rx)	16.91 cm	6.656 in
Radius of gyration (ry)	4.6 cm	1.811 in