W 350 x 136,5 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 350 x 136,5 (México) · Doble T 350 x 136,5 (Argentina / LATAM) · UB 350 (UK / Australia)

The W 350 x 136,5 steel profile weighs 136.5 kg/m (91.73 lb/ft), has a depth of 350 mm (13.78 in), flange width 350 mm (13.78 in). Cross-sectional area: 17,387.363 mm². Moment of inertia Ix = 40,295.094 cm⁴, Iy = 13,585.821 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	350 mm	13.78 in
Width (b)	350 mm	13.78 in
Web thickness (tw)	12 mm	0.47 in
Flange thickness (tf)	19 mm	0.75 in
Fillet radius (r)	20 mm	0.79 in
Weight	136.5 kg/m	91.73 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	17,387.36 mm²	26.950 in²
Moment of inertia (Ix)	40,295.09 cm⁴	968.09 in⁴
Moment of inertia (Iy)	13,585.82 cm⁴	326.40 in⁴
Elastic section modulus (Sx)	2,302.58 cm³	140.512 in³
Elastic section modulus (Sy)	776.33 cm³	47.375 in³
Plastic section modulus (Zx)	2,545.21 cm³	155.319 in³
Plastic section modulus (Zy)	1,178.58 cm³	71.921 in³
Radius of gyration (rx)	15.22 cm	5.993 in
Radius of gyration (ry)	8.84 cm	3.480 in