CHS 159x4.5 Tecnometal · Weight & Dimensions

Tecnometal, cold-formed sections (Spain) · 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 159x4.5 steel profile weighs 17.1 kg/m (11.52 lb/ft). Cross-sectional area: 2,184.192 mm². Moment of inertia Ix = 652.268 cm⁴, Iy = 652.268 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.5 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	4.5 mm	0.18 in
Diameter (d)	159 mm	6.26 in
Weight	17.1 kg/m	11.52 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,184.19 mm²	3.385 in²
Moment of inertia (Ix)	652.27 cm⁴	15.67 in⁴
Moment of inertia (Iy)	652.27 cm⁴	15.67 in⁴
Elastic section modulus (Sx)	82.05 cm³	5.007 in³
Elastic section modulus (Sy)	82.05 cm³	5.007 in³
Plastic section modulus (Zx)	107.45 cm³	6.557 in³
Plastic section modulus (Zy)	107.45 cm³	6.557 in³
Radius of gyration (rx)	5.46 cm	2.151 in
Radius of gyration (ry)	5.46 cm	2.151 in