CHS 68x16 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 68x16 steel profile weighs 20.5 kg/m (13.79 lb/ft). Cross-sectional area: 2,613.805 mm². Moment of inertia Ix = 96.711 cm⁴, Iy = 96.711 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	16 mm	0.63 in
Diameter (d)	68 mm	2.68 in
Weight	20.5 kg/m	13.79 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,613.81 mm²	4.051 in²
Moment of inertia (Ix)	96.71 cm⁴	2.32 in⁴
Moment of inertia (Iy)	96.71 cm⁴	2.32 in⁴
Elastic section modulus (Sx)	28.44 cm³	1.736 in³
Elastic section modulus (Sy)	28.44 cm³	1.736 in³
Plastic section modulus (Zx)	44.63 cm³	2.723 in³
Plastic section modulus (Zy)	44.63 cm³	2.723 in³
Radius of gyration (rx)	1.92 cm	0.757 in
Radius of gyration (ry)	1.92 cm	0.757 in