W 425 x 421,9 IMCA · Weight & Dimensions

IMCA, 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 425 x 421,9 (México) · Doble T 425 x 421,9 (Argentina / LATAM) · UB 425 (UK / Australia)

The W 425 x 421,9 steel profile weighs 421.9 kg/m (283.54 lb/ft), has a depth of 425 mm (16.73 in), flange width 409 mm (16.10 in). Cross-sectional area: 53,516.24 mm². Moment of inertia Ix = 159,107.653 cm⁴, Iy = 60,073.759 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
Weight	421.9 kg/m	283.54 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	53,516.24 mm²	82.950 in²
Moment of inertia (Ix)	159,107.65 cm⁴	3822.56 in⁴
Moment of inertia (Iy)	60,073.76 cm⁴	1443.27 in⁴
Elastic section modulus (Sx)	7,487.42 cm³	456.912 in³
Elastic section modulus (Sy)	2,937.59 cm³	179.264 in³
Plastic section modulus (Zx)	8,850.22 cm³	540.076 in³
Plastic section modulus (Zy)	4,485.5 cm³	273.723 in³
Radius of gyration (rx)	17.24 cm	6.788 in
Radius of gyration (ry)	10.59 cm	4.171 in