W 343 x 198,1 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 343 x 198,1 (México) · Doble T 343 x 198,1 (Argentina / LATAM) · UB 343 (UK / Australia)

The W 343 x 198,1 steel profile weighs 198.1 kg/m (133.10 lb/ft), has a depth of 343 mm (13.50 in), flange width 306 mm (12.05 in). Cross-sectional area: 25,231.779 mm². Moment of inertia Ix = 51,895.73 cm⁴, Iy = 15,310.697 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	343 mm	13.50 in
Width (b)	306 mm	12.05 in
Web thickness (tw)	18 mm	0.71 in
Flange thickness (tf)	32 mm	1.26 in
Fillet radius (r)	27 mm	1.06 in
Weight	198.1 kg/m	133.10 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	25,231.78 mm²	39.109 in²
Moment of inertia (Ix)	51,895.73 cm⁴	1246.79 in⁴
Moment of inertia (Iy)	15,310.7 cm⁴	367.84 in⁴
Elastic section modulus (Sx)	3,025.99 cm³	184.658 in³
Elastic section modulus (Sy)	1,000.7 cm³	61.067 in³
Plastic section modulus (Zx)	3,479.12 cm³	212.310 in³
Plastic section modulus (Zy)	1,530.18 cm³	93.378 in³
Radius of gyration (rx)	14.34 cm	5.646 in
Radius of gyration (ry)	7.79 cm	3.067 in