W 304 x 105,8 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 304 x 105,8 (México) · Doble T 304 x 105,8 (Argentina / LATAM) · UB 304 (UK / Australia)

The W 304 x 105,8 steel profile weighs 105.8 kg/m (71.11 lb/ft), has a depth of 304 mm (11.97 in), flange width 301 mm (11.85 in). Cross-sectional area: 13,482.124 mm². Moment of inertia Ix = 23,380.486 cm⁴, Iy = 7,732.588 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	304 mm	11.97 in
Width (b)	301 mm	11.85 in
Web thickness (tw)	11 mm	0.43 in
Flange thickness (tf)	17 mm	0.67 in
Fillet radius (r)	18 mm	0.71 in
Weight	105.8 kg/m	71.11 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	13,482.12 mm²	20.897 in²
Moment of inertia (Ix)	23,380.49 cm⁴	561.72 in⁴
Moment of inertia (Iy)	7,732.59 cm⁴	185.78 in⁴
Elastic section modulus (Sx)	1,538.19 cm³	93.866 in³
Elastic section modulus (Sy)	513.79 cm³	31.354 in³
Plastic section modulus (Zx)	1,705.48 cm³	104.075 in³
Plastic section modulus (Zy)	780.92 cm³	47.655 in³
Radius of gyration (rx)	13.17 cm	5.185 in
Radius of gyration (ry)	7.57 cm	2.982 in