CHS 28x8 GOST · Weight & Dimensions

GOST, cold-formed sections · 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 28x8 steel profile weighs 4.0 kg/m (2.65 lb/ft). Cross-sectional area: 502.655 mm². Moment of inertia Ix = 2.915 cm⁴, Iy = 2.915 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8 mm	0.31 in
Diameter (d)	28 mm	1.10 in
Weight	4.0 kg/m	2.65 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	502.65 mm²	0.779 in²
Moment of inertia (Ix)	2.92 cm⁴	0.07 in⁴
Moment of inertia (Iy)	2.92 cm⁴	0.07 in⁴
Elastic section modulus (Sx)	2.08 cm³	0.127 in³
Elastic section modulus (Sy)	2.08 cm³	0.127 in³
Plastic section modulus (Zx)	3.37 cm³	0.206 in³
Plastic section modulus (Zy)	3.37 cm³	0.206 in³
Radius of gyration (rx)	0.76 cm	0.300 in
Radius of gyration (ry)	0.76 cm	0.300 in