CHS 68x7 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 68x7 steel profile weighs 10.5 kg/m (7.08 lb/ft). Cross-sectional area: 1,341.46 mm². Moment of inertia Ix = 63.216 cm⁴, Iy = 63.216 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	7 mm	0.28 in
Diameter (d)	68 mm	2.68 in
Weight	10.5 kg/m	7.08 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,341.46 mm²	2.079 in²
Moment of inertia (Ix)	63.22 cm⁴	1.52 in⁴
Moment of inertia (Iy)	63.22 cm⁴	1.52 in⁴
Elastic section modulus (Sx)	18.59 cm³	1.135 in³
Elastic section modulus (Sy)	18.59 cm³	1.135 in³
Plastic section modulus (Zx)	26.16 cm³	1.596 in³
Plastic section modulus (Zy)	26.16 cm³	1.596 in³
Radius of gyration (rx)	2.17 cm	0.855 in
Radius of gyration (ry)	2.17 cm	0.855 in