CHS 83x8 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 83x8 steel profile weighs 14.8 kg/m (9.95 lb/ft). Cross-sectional area: 1,884.956 mm². Moment of inertia Ix = 134.044 cm⁴, Iy = 134.044 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8 mm	0.31 in
Diameter (d)	83 mm	3.27 in
Weight	14.8 kg/m	9.95 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,884.96 mm²	2.922 in²
Moment of inertia (Ix)	134.04 cm⁴	3.22 in⁴
Moment of inertia (Iy)	134.04 cm⁴	3.22 in⁴
Elastic section modulus (Sx)	32.3 cm³	1.971 in³
Elastic section modulus (Sy)	32.3 cm³	1.971 in³
Plastic section modulus (Zx)	45.17 cm³	2.756 in³
Plastic section modulus (Zy)	45.17 cm³	2.756 in³
Radius of gyration (rx)	2.67 cm	1.050 in
Radius of gyration (ry)	2.67 cm	1.050 in