CHS 180x17 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 180x17 steel profile weighs 68.3 kg/m (45.92 lb/ft). Cross-sectional area: 8,705.353 mm². Moment of inertia Ix = 2,922.605 cm⁴, Iy = 2,922.605 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	17 mm	0.67 in
Diameter (d)	180 mm	7.09 in
Weight	68.3 kg/m	45.92 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,705.35 mm²	13.493 in²
Moment of inertia (Ix)	2,922.6 cm⁴	70.22 in⁴
Moment of inertia (Iy)	2,922.6 cm⁴	70.22 in⁴
Elastic section modulus (Sx)	324.73 cm³	19.817 in³
Elastic section modulus (Sy)	324.73 cm³	19.817 in³
Plastic section modulus (Zx)	453.31 cm³	27.663 in³
Plastic section modulus (Zy)	453.31 cm³	27.663 in³
Radius of gyration (rx)	5.79 cm	2.281 in
Radius of gyration (ry)	5.79 cm	2.281 in