W 166 x 44,0 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 166 x 44,0 (México) · Doble T 166 x 44,0 (Argentina / LATAM) · UB 166 (UK / Australia)

The W 166 x 44,0 steel profile weighs 44.0 kg/m (29.59 lb/ft), has a depth of 166 mm (6.54 in), flange width 155.9 mm (6.14 in). Cross-sectional area: 5,608.662 mm². Moment of inertia Ix = 2,703.177 cm⁴, Iy = 860.075 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	166 mm	6.54 in
Width (b)	155.9 mm	6.14 in
Web thickness (tw)	9.5 mm	0.37 in
Flange thickness (tf)	13.6 mm	0.54 in
Fillet radius (r)	7.6 mm	0.30 in
Weight	44.0 kg/m	29.59 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,608.66 mm²	8.693 in²
Moment of inertia (Ix)	2,703.18 cm⁴	64.94 in⁴
Moment of inertia (Iy)	860.08 cm⁴	20.66 in⁴
Elastic section modulus (Sx)	325.68 cm³	19.875 in³
Elastic section modulus (Sy)	110.34 cm³	6.733 in³
Plastic section modulus (Zx)	372.24 cm³	22.715 in³
Plastic section modulus (Zy)	168.72 cm³	10.296 in³
Radius of gyration (rx)	6.94 cm	2.733 in
Radius of gyration (ry)	3.92 cm	1.542 in