I 1600x550x16x45 CISC · Weight & Dimensions

CISC, welded 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: I 1600x550x16x45 (México) · Doble T I 1600x550x16x45 (Argentina / LATAM) · UB 1600 (UK / Australia)

The I 1600x550x16x45 steel profile weighs 578.2 kg/m (388.57 lb/ft), has a depth of 1600 mm (62.99 in), flange width 550 mm (21.65 in). Cross-sectional area: 73,660 mm². Moment of inertia Ix = 3,452,201.383 cm⁴, Iy = 124,832.791 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	1600 mm	62.99 in
Width (b)	550 mm	21.65 in
Web thickness (tw)	16 mm	0.63 in
Flange thickness (tf)	45 mm	1.77 in
Weight	578.2 kg/m	388.57 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	73,660 mm²	114.173 in²
Moment of inertia (Ix)	3,452,201.38 cm⁴	82939.14 in⁴
Moment of inertia (Iy)	124,832.79 cm⁴	2999.11 in⁴
Elastic section modulus (Sx)	43,152.52 cm³	2633.339 in³
Elastic section modulus (Sy)	4,539.37 cm³	277.011 in³
Plastic section modulus (Zx)	47,606.65 cm³	2905.148 in³
Plastic section modulus (Zy)	6,902.89 cm³	421.242 in³
Radius of gyration (rx)	68.46 cm	26.952 in
Radius of gyration (ry)	13.02 cm	5.125 in