CHS 168x7 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 168x7 steel profile weighs 27.8 kg/m (18.67 lb/ft). Cross-sectional area: 3,540.575 mm². Moment of inertia Ix = 1,149.359 cm⁴, Iy = 1,149.359 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	7 mm	0.28 in
Diameter (d)	168 mm	6.61 in
Weight	27.8 kg/m	18.67 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,540.57 mm²	5.488 in²
Moment of inertia (Ix)	1,149.36 cm⁴	27.61 in⁴
Moment of inertia (Iy)	1,149.36 cm⁴	27.61 in⁴
Elastic section modulus (Sx)	136.83 cm³	8.350 in³
Elastic section modulus (Sy)	136.83 cm³	8.350 in³
Plastic section modulus (Zx)	181.56 cm³	11.080 in³
Plastic section modulus (Zy)	181.56 cm³	11.080 in³
Radius of gyration (rx)	5.7 cm	2.243 in
Radius of gyration (ry)	5.7 cm	2.243 in