CHS 168x5 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 168x5 steel profile weighs 20.1 kg/m (13.51 lb/ft). Cross-sectional area: 2,560.398 mm². Moment of inertia Ix = 851.14 cm⁴, Iy = 851.14 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5 mm ≈ 6 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	5 mm	0.20 in
Diameter (d)	168 mm	6.61 in
Weight	20.1 kg/m	13.51 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,560.4 mm²	3.969 in²
Moment of inertia (Ix)	851.14 cm⁴	20.45 in⁴
Moment of inertia (Iy)	851.14 cm⁴	20.45 in⁴
Elastic section modulus (Sx)	101.33 cm³	6.183 in³
Elastic section modulus (Sy)	101.33 cm³	6.183 in³
Plastic section modulus (Zx)	132.89 cm³	8.109 in³
Plastic section modulus (Zy)	132.89 cm³	8.109 in³
Radius of gyration (rx)	5.77 cm	2.270 in
Radius of gyration (ry)	5.77 cm	2.270 in