CHS 168x9 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 168x9 steel profile weighs 35.3 kg/m (23.71 lb/ft). Cross-sectional area: 4,495.619 mm². Moment of inertia Ix = 1,425.224 cm⁴, Iy = 1,425.224 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9 mm	0.35 in
Diameter (d)	168 mm	6.61 in
Weight	35.3 kg/m	23.71 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,495.62 mm²	6.968 in²
Moment of inertia (Ix)	1,425.22 cm⁴	34.24 in⁴
Moment of inertia (Iy)	1,425.22 cm⁴	34.24 in⁴
Elastic section modulus (Sx)	169.67 cm³	10.354 in³
Elastic section modulus (Sy)	169.67 cm³	10.354 in³
Plastic section modulus (Zx)	227.77 cm³	13.900 in³
Plastic section modulus (Zy)	227.77 cm³	13.900 in³
Radius of gyration (rx)	5.63 cm	2.217 in
Radius of gyration (ry)	5.63 cm	2.217 in