CHS 50.8x0.9 Cimagbo · Weight & Dimensions

Cimagbo, cold-formed sections · Circular Hollow Section

Circular Hollow Sections (CHS) are round tubular profiles with the most efficient cross-section for compression. Used for columns, trusses, and architectural structures.

Also known as: Caño estructural redondo (Argentina)

The CHS 50.8x0.9 steel profile weighs 1.1 kg/m (0.75 lb/ft). Cross-sectional area: 141.089 mm². Moment of inertia Ix = 4.393 cm⁴, Iy = 4.393 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 0.9 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	0.9 mm	0.04 in
Diameter (d)	50.8 mm	2.00 in
Weight	1.1 kg/m	0.75 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	141.09 mm²	0.219 in²
Moment of inertia (Ix)	4.39 cm⁴	0.11 in⁴
Moment of inertia (Iy)	4.39 cm⁴	0.11 in⁴
Elastic section modulus (Sx)	1.73 cm³	0.106 in³
Elastic section modulus (Sy)	1.73 cm³	0.106 in³
Plastic section modulus (Zx)	2.24 cm³	0.137 in³
Plastic section modulus (Zy)	2.24 cm³	0.137 in³
Radius of gyration (rx)	1.76 cm	0.695 in
Radius of gyration (ry)	1.76 cm	0.695 in