W 328 x 186,1 British Steel · Weight & Dimensions

British Steel, 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 328 x 186,1 (México) · Doble T 328 x 186,1 (Argentina / LATAM) · UB 328.3 (UK / Australia)

The W 328 x 186,1 steel profile weighs 186.1 kg/m (125.03 lb/ft), has a depth of 328.3 mm (12.93 in), flange width 320.9 mm (12.63 in). Cross-sectional area: 23,694.456 mm². Moment of inertia Ix = 42,609.617 cm⁴, Iy = 14,142.93 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	328.3 mm	12.93 in
Width (b)	320.9 mm	12.63 in
Web thickness (tw)	25.5 mm	1.00 in
Flange thickness (tf)	25.6 mm	1.01 in
Fillet radius (r)	15.2 mm	0.60 in
Weight	186.1 kg/m	125.03 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	23,694.46 mm²	36.726 in²
Moment of inertia (Ix)	42,609.62 cm⁴	1023.70 in⁴
Moment of inertia (Iy)	14,142.93 cm⁴	339.78 in⁴
Elastic section modulus (Sx)	2,595.77 cm³	158.404 in³
Elastic section modulus (Sy)	881.45 cm³	53.790 in³
Plastic section modulus (Zx)	3,003 cm³	183.255 in³
Plastic section modulus (Zy)	1,366.35 cm³	83.380 in³
Radius of gyration (rx)	13.41 cm	5.280 in
Radius of gyration (ry)	7.73 cm	3.042 in