W 350 x 155,7 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 155,7 (México) · Doble T 350 x 155,7 (Argentina / LATAM) · UB 350 (UK / Australia)

The W 350 x 155,7 steel profile weighs 155.7 kg/m (104.66 lb/ft), has a depth of 350 mm (13.78 in), flange width 357 mm (14.06 in). Cross-sectional area: 19,837.363 mm². Moment of inertia Ix = 42,796.136 cm⁴, Iy = 14,433.124 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	350 mm	13.78 in
Width (b)	357 mm	14.06 in
Web thickness (tw)	19 mm	0.75 in
Flange thickness (tf)	19 mm	0.75 in
Fillet radius (r)	20 mm	0.79 in
Weight	155.7 kg/m	104.66 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	19,837.36 mm²	30.748 in²
Moment of inertia (Ix)	42,796.14 cm⁴	1028.18 in⁴
Moment of inertia (Iy)	14,433.12 cm⁴	346.76 in⁴
Elastic section modulus (Sx)	2,445.49 cm³	149.234 in³
Elastic section modulus (Sy)	808.58 cm³	49.343 in³
Plastic section modulus (Zx)	2,759.59 cm³	168.401 in³
Plastic section modulus (Zy)	1,243.72 cm³	75.897 in³
Radius of gyration (rx)	14.69 cm	5.783 in
Radius of gyration (ry)	8.53 cm	3.358 in