W 425 x 99,8 Arval · Weight & Dimensions

Arval, 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 99,8 (México) · Doble T 425 x 99,8 (Argentina / LATAM) · UB 425 (UK / Australia)

The W 425 x 99,8 steel profile weighs 99.8 kg/m (67.05 lb/ft), has a depth of 425 mm (16.73 in), flange width 300 mm (11.81 in). Cross-sectional area: 12,705.779 mm². Moment of inertia Ix = 41,887.636 cm⁴, Iy = 6,087.535 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	425 mm	16.73 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	10 mm	0.39 in
Flange thickness (tf)	13.5 mm	0.53 in
Fillet radius (r)	27 mm	1.06 in
Weight	99.8 kg/m	67.05 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,705.78 mm²	19.694 in²
Moment of inertia (Ix)	41,887.64 cm⁴	1006.35 in⁴
Moment of inertia (Iy)	6,087.54 cm⁴	146.25 in⁴
Elastic section modulus (Sx)	1,971.18 cm³	120.289 in³
Elastic section modulus (Sy)	405.84 cm³	24.766 in³
Plastic section modulus (Zx)	2,183.34 cm³	133.236 in³
Plastic section modulus (Zy)	624.35 cm³	38.101 in³
Radius of gyration (rx)	18.16 cm	7.148 in
Radius of gyration (ry)	6.92 cm	2.725 in