CHS 83x7 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 83x7 steel profile weighs 13.1 kg/m (8.82 lb/ft). Cross-sectional area: 1,671.327 mm². Moment of inertia Ix = 121.694 cm⁴, Iy = 121.694 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	7 mm	0.28 in
Diameter (d)	83 mm	3.27 in
Weight	13.1 kg/m	8.82 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,671.33 mm²	2.591 in²
Moment of inertia (Ix)	121.69 cm⁴	2.92 in⁴
Moment of inertia (Iy)	121.69 cm⁴	2.92 in⁴
Elastic section modulus (Sx)	29.32 cm³	1.789 in³
Elastic section modulus (Sy)	29.32 cm³	1.789 in³
Plastic section modulus (Zx)	40.55 cm³	2.474 in³
Plastic section modulus (Zy)	40.55 cm³	2.474 in³
Radius of gyration (rx)	2.7 cm	1.062 in
Radius of gyration (ry)	2.7 cm	1.062 in