CHS 28x7 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 28x7 steel profile weighs 3.6 kg/m (2.44 lb/ft). Cross-sectional area: 461.814 mm². Moment of inertia Ix = 2.829 cm⁴, Iy = 2.829 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	7 mm	0.28 in
Diameter (d)	28 mm	1.10 in
Weight	3.6 kg/m	2.44 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	461.81 mm²	0.716 in²
Moment of inertia (Ix)	2.83 cm⁴	0.07 in⁴
Moment of inertia (Iy)	2.83 cm⁴	0.07 in⁴
Elastic section modulus (Sx)	2.02 cm³	0.123 in³
Elastic section modulus (Sy)	2.02 cm³	0.123 in³
Plastic section modulus (Zx)	3.2 cm³	0.195 in³
Plastic section modulus (Zy)	3.2 cm³	0.195 in³
Radius of gyration (rx)	0.78 cm	0.308 in
Radius of gyration (ry)	0.78 cm	0.308 in