CHS 83x5 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 83x5 steel profile weighs 9.6 kg/m (6.46 lb/ft). Cross-sectional area: 1,225.221 mm². Moment of inertia Ix = 93.561 cm⁴, Iy = 93.561 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5 mm ≈ 6 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	5 mm	0.20 in
Diameter (d)	83 mm	3.27 in
Weight	9.6 kg/m	6.46 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,225.22 mm²	1.899 in²
Moment of inertia (Ix)	93.56 cm⁴	2.25 in⁴
Moment of inertia (Iy)	93.56 cm⁴	2.25 in⁴
Elastic section modulus (Sx)	22.54 cm³	1.376 in³
Elastic section modulus (Sy)	22.54 cm³	1.376 in³
Plastic section modulus (Zx)	30.46 cm³	1.859 in³
Plastic section modulus (Zy)	30.46 cm³	1.859 in³
Radius of gyration (rx)	2.76 cm	1.088 in
Radius of gyration (ry)	2.76 cm	1.088 in