W 360 x 421,0 CISC · Weight & Dimensions

CISC, 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 360 x 421,0 (México) · Doble T 360 x 421,0 (Argentina / LATAM) · UB 425 (UK / Australia)

The W 360 x 421,0 steel profile weighs 421.6 kg/m (283.28 lb/ft), has a depth of 425 mm (16.73 in), flange width 409 mm (16.10 in). Cross-sectional area: 53,709.382 mm². Moment of inertia Ix = 159,581.152 cm⁴, Iy = 60,081.446 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	425 mm	16.73 in
Width (b)	409 mm	16.10 in
Web thickness (tw)	32.8 mm	1.29 in
Flange thickness (tf)	52.6 mm	2.07 in
Fillet radius (r)	15 mm	0.59 in
Weight	421.6 kg/m	283.28 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	53,709.38 mm²	83.250 in²
Moment of inertia (Ix)	159,581.15 cm⁴	3833.94 in⁴
Moment of inertia (Iy)	60,081.45 cm⁴	1443.46 in⁴
Elastic section modulus (Sx)	7,509.7 cm³	458.272 in³
Elastic section modulus (Sy)	2,937.97 cm³	179.287 in³
Plastic section modulus (Zx)	8,880.46 cm³	541.921 in³
Plastic section modulus (Zy)	4,489.32 cm³	273.956 in³
Radius of gyration (rx)	17.24 cm	6.786 in
Radius of gyration (ry)	10.58 cm	4.164 in