CHS 180x11 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 180x11 steel profile weighs 45.9 kg/m (30.81 lb/ft). Cross-sectional area: 5,840.221 mm². Moment of inertia Ix = 2,093.865 cm⁴, Iy = 2,093.865 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	11 mm	0.43 in
Diameter (d)	180 mm	7.09 in
Weight	45.9 kg/m	30.81 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,840.22 mm²	9.052 in²
Moment of inertia (Ix)	2,093.87 cm⁴	50.31 in⁴
Moment of inertia (Iy)	2,093.87 cm⁴	50.31 in⁴
Elastic section modulus (Sx)	232.65 cm³	14.197 in³
Elastic section modulus (Sy)	232.65 cm³	14.197 in³
Plastic section modulus (Zx)	314.61 cm³	19.199 in³
Plastic section modulus (Zy)	314.61 cm³	19.199 in³
Radius of gyration (rx)	5.99 cm	2.357 in
Radius of gyration (ry)	5.99 cm	2.357 in