CHS 45x1.5 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 45x1.5 steel profile weighs 1.6 kg/m (1.08 lb/ft). Cross-sectional area: 204.989 mm². Moment of inertia Ix = 4.854 cm⁴, Iy = 4.854 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.5 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1.5 mm	0.06 in
Diameter (d)	45 mm	1.77 in
Weight	1.6 kg/m	1.08 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	204.99 mm²	0.318 in²
Moment of inertia (Ix)	4.85 cm⁴	0.12 in⁴
Moment of inertia (Iy)	4.85 cm⁴	0.12 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)	2.84 cm³	0.173 in³
Plastic section modulus (Zy)	2.84 cm³	0.173 in³
Radius of gyration (rx)	1.54 cm	0.606 in
Radius of gyration (ry)	1.54 cm	0.606 in