CHS 73x4.06 Hylsa · Weight & Dimensions

Hylsa, 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 73x4.06 steel profile weighs 6.9 kg/m (4.64 lb/ft). Cross-sectional area: 879.32 mm². Moment of inertia Ix = 52.421 cm⁴, Iy = 52.421 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.06 mm ≈ 8 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	4.1 mm	0.16 in
Diameter (d)	73 mm	2.87 in
Weight	6.9 kg/m	4.64 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	879.32 mm²	1.363 in²
Moment of inertia (Ix)	52.42 cm⁴	1.26 in⁴
Moment of inertia (Iy)	52.42 cm⁴	1.26 in⁴
Elastic section modulus (Sx)	14.36 cm³	0.876 in³
Elastic section modulus (Sy)	14.36 cm³	0.876 in³
Plastic section modulus (Zx)	19.32 cm³	1.179 in³
Plastic section modulus (Zy)	19.32 cm³	1.179 in³
Radius of gyration (rx)	2.44 cm	0.961 in
Radius of gyration (ry)	2.44 cm	0.961 in