W 344 x 130,8 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 344 x 130,8 (México) · Doble T 344 x 130,8 (Argentina / LATAM) · UB 344 (UK / Australia)

The W 344 x 130,8 steel profile weighs 130.8 kg/m (87.88 lb/ft), has a depth of 344 mm (13.54 in), flange width 354 mm (13.94 in). Cross-sectional area: 16,663.363 mm². Moment of inertia Ix = 35,330.383 cm⁴, Iy = 11,846.3 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	344 mm	13.54 in
Width (b)	354 mm	13.94 in
Web thickness (tw)	16 mm	0.63 in
Flange thickness (tf)	16 mm	0.63 in
Fillet radius (r)	20 mm	0.79 in
Weight	130.8 kg/m	87.88 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	16,663.36 mm²	25.828 in²
Moment of inertia (Ix)	35,330.38 cm⁴	848.81 in⁴
Moment of inertia (Iy)	11,846.3 cm⁴	284.61 in⁴
Elastic section modulus (Sx)	2,054.09 cm³	125.349 in³
Elastic section modulus (Sy)	669.28 cm³	40.842 in³
Plastic section modulus (Zx)	2,299.2 cm³	140.306 in³
Plastic section modulus (Zy)	1,026.78 cm³	62.658 in³
Radius of gyration (rx)	14.56 cm	5.733 in
Radius of gyration (ry)	8.43 cm	3.320 in