CHS 50.8x1.9 Gerdau · Weight & Dimensions

Gerdau, tubes · 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 50.8x1.9 steel profile weighs 2.3 kg/m (1.54 lb/ft). Cross-sectional area: 291.885 mm². Moment of inertia Ix = 8.738 cm⁴, Iy = 8.738 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.9 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1.9 mm	0.07 in
Diameter (d)	50.8 mm	2.00 in
Weight	2.3 kg/m	1.54 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	291.89 mm²	0.452 in²
Moment of inertia (Ix)	8.74 cm⁴	0.21 in⁴
Moment of inertia (Iy)	8.74 cm⁴	0.21 in⁴
Elastic section modulus (Sx)	3.44 cm³	0.210 in³
Elastic section modulus (Sy)	3.44 cm³	0.210 in³
Plastic section modulus (Zx)	4.55 cm³	0.277 in³
Plastic section modulus (Zy)	4.55 cm³	0.277 in³
Radius of gyration (rx)	1.73 cm	0.681 in
Radius of gyration (ry)	1.73 cm	0.681 in