CHS 90x2 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 90x2 steel profile weighs 4.3 kg/m (2.92 lb/ft). Cross-sectional area: 552.92 mm². Moment of inertia Ix = 53.55 cm⁴, Iy = 53.55 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2 mm	0.08 in
Diameter (d)	90 mm	3.54 in
Weight	4.3 kg/m	2.92 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	552.92 mm²	0.857 in²
Moment of inertia (Ix)	53.55 cm⁴	1.29 in⁴
Moment of inertia (Iy)	53.55 cm⁴	1.29 in⁴
Elastic section modulus (Sx)	11.9 cm³	0.726 in³
Elastic section modulus (Sy)	11.9 cm³	0.726 in³
Plastic section modulus (Zx)	15.49 cm³	0.945 in³
Plastic section modulus (Zy)	15.49 cm³	0.945 in³
Radius of gyration (rx)	3.11 cm	1.225 in
Radius of gyration (ry)	3.11 cm	1.225 in