CHS 83x2.5 Hiasa · Weight & Dimensions

Hiasa, 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 83x2.5 steel profile weighs 5.0 kg/m (3.33 lb/ft). Cross-sectional area: 632.246 mm². Moment of inertia Ix = 51.263 cm⁴, Iy = 51.263 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.5 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2.5 mm	0.10 in
Diameter (d)	83 mm	3.27 in
Weight	5.0 kg/m	3.33 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	632.25 mm²	0.980 in²
Moment of inertia (Ix)	51.26 cm⁴	1.23 in⁴
Moment of inertia (Iy)	51.26 cm⁴	1.23 in⁴
Elastic section modulus (Sx)	12.35 cm³	0.754 in³
Elastic section modulus (Sy)	12.35 cm³	0.754 in³
Plastic section modulus (Zx)	16.21 cm³	0.989 in³
Plastic section modulus (Zy)	16.21 cm³	0.989 in³
Radius of gyration (rx)	2.85 cm	1.121 in
Radius of gyration (ry)	2.85 cm	1.121 in