CHS 65x2 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 65x2 steel profile weighs 3.1 kg/m (2.09 lb/ft). Cross-sectional area: 395.841 mm². Moment of inertia Ix = 19.658 cm⁴, Iy = 19.658 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)	65 mm	2.56 in
Weight	3.1 kg/m	2.09 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	395.84 mm²	0.614 in²
Moment of inertia (Ix)	19.66 cm⁴	0.47 in⁴
Moment of inertia (Iy)	19.66 cm⁴	0.47 in⁴
Elastic section modulus (Sx)	6.05 cm³	0.369 in³
Elastic section modulus (Sy)	6.05 cm³	0.369 in³
Plastic section modulus (Zx)	7.94 cm³	0.485 in³
Plastic section modulus (Zy)	7.94 cm³	0.485 in³
Radius of gyration (rx)	2.23 cm	0.877 in
Radius of gyration (ry)	2.23 cm	0.877 in