CHS 35x3 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 35x3 steel profile weighs 2.4 kg/m (1.59 lb/ft). Cross-sectional area: 301.593 mm². Moment of inertia Ix = 3.894 cm⁴, Iy = 3.894 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	3 mm	0.12 in
Diameter (d)	35 mm	1.38 in
Weight	2.4 kg/m	1.59 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	301.59 mm²	0.467 in²
Moment of inertia (Ix)	3.89 cm⁴	0.09 in⁴
Moment of inertia (Iy)	3.89 cm⁴	0.09 in⁴
Elastic section modulus (Sx)	2.23 cm³	0.136 in³
Elastic section modulus (Sy)	2.23 cm³	0.136 in³
Plastic section modulus (Zx)	3.08 cm³	0.188 in³
Plastic section modulus (Zy)	3.08 cm³	0.188 in³
Radius of gyration (rx)	1.14 cm	0.447 in
Radius of gyration (ry)	1.14 cm	0.447 in