CHS 168x8 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 168x8 steel profile weighs 31.6 kg/m (21.22 lb/ft). Cross-sectional area: 4,021.239 mm². Moment of inertia Ix = 1,290.013 cm⁴, Iy = 1,290.013 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8 mm	0.31 in
Diameter (d)	168 mm	6.61 in
Weight	31.6 kg/m	21.22 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,021.24 mm²	6.233 in²
Moment of inertia (Ix)	1,290.01 cm⁴	30.99 in⁴
Moment of inertia (Iy)	1,290.01 cm⁴	30.99 in⁴
Elastic section modulus (Sx)	153.57 cm³	9.372 in³
Elastic section modulus (Sy)	153.57 cm³	9.372 in³
Plastic section modulus (Zx)	204.97 cm³	12.508 in³
Plastic section modulus (Zy)	204.97 cm³	12.508 in³
Radius of gyration (rx)	5.66 cm	2.230 in
Radius of gyration (ry)	5.66 cm	2.230 in