CHS 50.8x2.0 · Weight & Dimensions

EN — 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 50.8x2.0 steel profile weighs 2.4 kg/m (1.62 lb/ft). Cross-sectional area: 306.6 mm². Moment of inertia Ix = 9.14 cm⁴, Iy = 9.14 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2 mm	0.08 in
Diameter (d)	50.8 mm	2.00 in
Weight	2.4 kg/m	1.62 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	306.6 mm²	0.475 in²
Moment of inertia (Ix)	9.14 cm⁴	0.22 in⁴
Moment of inertia (Iy)	9.14 cm⁴	0.22 in⁴
Elastic section modulus (Sx)	3.6 cm³	0.220 in³
Elastic section modulus (Sy)	3.6 cm³	0.220 in³
Plastic section modulus (Zx)	4.77 cm³	0.291 in³
Plastic section modulus (Zy)	4.77 cm³	0.291 in³
Radius of gyration (rx)	1.73 cm	0.681 in
Radius of gyration (ry)	1.73 cm	0.681 in