CHS 28.57x2.25 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 28.57x2.25 steel profile weighs 1.5 kg/m (0.98 lb/ft). Cross-sectional area: 186.045 mm². Moment of inertia Ix = 1.623 cm⁴, Iy = 1.623 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.25 mm ≈ 13 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2.3 mm	0.09 in
Diameter (d)	28.6 mm	1.12 in
Weight	1.5 kg/m	0.98 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	186.05 mm²	0.288 in²
Moment of inertia (Ix)	1.62 cm⁴	0.04 in⁴
Moment of inertia (Iy)	1.62 cm⁴	0.04 in⁴
Elastic section modulus (Sx)	1.14 cm³	0.069 in³
Elastic section modulus (Sy)	1.14 cm³	0.069 in³
Plastic section modulus (Zx)	1.56 cm³	0.095 in³
Plastic section modulus (Zy)	1.56 cm³	0.095 in³
Radius of gyration (rx)	0.93 cm	0.368 in
Radius of gyration (ry)	0.93 cm	0.368 in