CHS 73x4 V&M do Brasil · Weight & Dimensions

V&M do Brasil, hot-rolled 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 steel profile weighs 6.8 kg/m (4.58 lb/ft). Cross-sectional area: 867.08 mm². Moment of inertia Ix = 51.775 cm⁴, Iy = 51.775 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4 mm ≈ 8 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	4 mm	0.16 in
Diameter (d)	73 mm	2.87 in
Weight	6.8 kg/m	4.58 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	867.08 mm²	1.344 in²
Moment of inertia (Ix)	51.78 cm⁴	1.24 in⁴
Moment of inertia (Iy)	51.78 cm⁴	1.24 in⁴
Elastic section modulus (Sx)	14.19 cm³	0.866 in³
Elastic section modulus (Sy)	14.19 cm³	0.866 in³
Plastic section modulus (Zx)	19.07 cm³	1.163 in³
Plastic section modulus (Zy)	19.07 cm³	1.163 in³
Radius of gyration (rx)	2.44 cm	0.962 in
Radius of gyration (ry)	2.44 cm	0.962 in