CHS 28.57x2.65 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 28.57x2.65 steel profile weighs 1.7 kg/m (1.14 lb/ft). Cross-sectional area: 215.79 mm². Moment of inertia Ix = 1.831 cm⁴, Iy = 1.831 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.65 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2.6 mm	0.10 in
Diameter (d)	28.6 mm	1.12 in
Weight	1.7 kg/m	1.14 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	215.79 mm²	0.334 in²
Moment of inertia (Ix)	1.83 cm⁴	0.04 in⁴
Moment of inertia (Iy)	1.83 cm⁴	0.04 in⁴
Elastic section modulus (Sx)	1.28 cm³	0.078 in³
Elastic section modulus (Sy)	1.28 cm³	0.078 in³
Plastic section modulus (Zx)	1.79 cm³	0.109 in³
Plastic section modulus (Zy)	1.79 cm³	0.109 in³
Radius of gyration (rx)	0.92 cm	0.363 in
Radius of gyration (ry)	0.92 cm	0.363 in