CHS 40x2 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 40x2 steel profile weighs 1.9 kg/m (1.26 lb/ft). Cross-sectional area: 238.761 mm². Moment of inertia Ix = 4.322 cm⁴, Iy = 4.322 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)	40 mm	1.57 in
Weight	1.9 kg/m	1.26 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	238.76 mm²	0.370 in²
Moment of inertia (Ix)	4.32 cm⁴	0.10 in⁴
Moment of inertia (Iy)	4.32 cm⁴	0.10 in⁴
Elastic section modulus (Sx)	2.16 cm³	0.132 in³
Elastic section modulus (Sy)	2.16 cm³	0.132 in³
Plastic section modulus (Zx)	2.89 cm³	0.176 in³
Plastic section modulus (Zy)	2.89 cm³	0.176 in³
Radius of gyration (rx)	1.35 cm	0.530 in
Radius of gyration (ry)	1.35 cm	0.530 in