CHS 68x8 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 68x8 steel profile weighs 11.8 kg/m (7.96 lb/ft). Cross-sectional area: 1,507.964 mm². Moment of inertia Ix = 69.065 cm⁴, Iy = 69.065 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8 mm	0.31 in
Diameter (d)	68 mm	2.68 in
Weight	11.8 kg/m	7.96 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,507.96 mm²	2.337 in²
Moment of inertia (Ix)	69.06 cm⁴	1.66 in⁴
Moment of inertia (Iy)	69.06 cm⁴	1.66 in⁴
Elastic section modulus (Sx)	20.31 cm³	1.240 in³
Elastic section modulus (Sy)	20.31 cm³	1.240 in³
Plastic section modulus (Zx)	28.97 cm³	1.768 in³
Plastic section modulus (Zy)	28.97 cm³	1.768 in³
Radius of gyration (rx)	2.14 cm	0.843 in
Radius of gyration (ry)	2.14 cm	0.843 in