CHS 50.8x1.1 Acindar · Weight & Dimensions

Acindar, 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 50.8x1.1 steel profile weighs 1.4 kg/m (0.91 lb/ft). Cross-sectional area: 171.751 mm². Moment of inertia Ix = 5.306 cm⁴, Iy = 5.306 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.1 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1.1 mm	0.04 in
Diameter (d)	50.8 mm	2.00 in
Weight	1.4 kg/m	0.91 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	171.75 mm²	0.266 in²
Moment of inertia (Ix)	5.31 cm⁴	0.13 in⁴
Moment of inertia (Iy)	5.31 cm⁴	0.13 in⁴
Elastic section modulus (Sx)	2.09 cm³	0.127 in³
Elastic section modulus (Sy)	2.09 cm³	0.127 in³
Plastic section modulus (Zx)	2.72 cm³	0.166 in³
Plastic section modulus (Zy)	2.72 cm³	0.166 in³
Radius of gyration (rx)	1.76 cm	0.692 in
Radius of gyration (ry)	1.76 cm	0.692 in