CHS 50.8x1.25 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 50.8x1.25 steel profile weighs 1.5 kg/m (1.03 lb/ft). Cross-sectional area: 194.582 mm². Moment of inertia Ix = 5.976 cm⁴, Iy = 5.976 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.25 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1.3 mm	0.05 in
Diameter (d)	50.8 mm	2.00 in
Weight	1.5 kg/m	1.03 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	194.58 mm²	0.302 in²
Moment of inertia (Ix)	5.98 cm⁴	0.14 in⁴
Moment of inertia (Iy)	5.98 cm⁴	0.14 in⁴
Elastic section modulus (Sx)	2.35 cm³	0.144 in³
Elastic section modulus (Sy)	2.35 cm³	0.144 in³
Plastic section modulus (Zx)	3.07 cm³	0.187 in³
Plastic section modulus (Zy)	3.07 cm³	0.187 in³
Radius of gyration (rx)	1.75 cm	0.690 in
Radius of gyration (ry)	1.75 cm	0.690 in