W 346 x 41,4 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 346 x 41,4 (México) · Doble T 346 x 41,4 (Argentina / LATAM) · UB 346 (UK / Australia)

The W 346 x 41,4 steel profile weighs 41.4 kg/m (27.79 lb/ft), has a depth of 346 mm (13.62 in), flange width 174 mm (6.85 in). Cross-sectional area: 5,268.248 mm². Moment of inertia Ix = 11,094.487 cm⁴, Iy = 791.542 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	346 mm	13.62 in
Width (b)	174 mm	6.85 in
Web thickness (tw)	6 mm	0.24 in
Flange thickness (tf)	9 mm	0.35 in
Fillet radius (r)	14 mm	0.55 in
Weight	41.4 kg/m	27.79 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,268.25 mm²	8.166 in²
Moment of inertia (Ix)	11,094.49 cm⁴	266.55 in⁴
Moment of inertia (Iy)	791.54 cm⁴	19.02 in⁴
Elastic section modulus (Sx)	641.3 cm³	39.135 in³
Elastic section modulus (Sy)	90.98 cm³	5.552 in³
Plastic section modulus (Zx)	716.18 cm³	43.704 in³
Plastic section modulus (Zy)	140.22 cm³	8.557 in³
Radius of gyration (rx)	14.51 cm	5.713 in
Radius of gyration (ry)	3.88 cm	1.526 in