CHS 73x9.5 Açotubo · Weight & Dimensions

Açotubo, 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 73x9.5 steel profile weighs 14.9 kg/m (10.00 lb/ft). Cross-sectional area: 1,895.166 mm². Moment of inertia Ix = 97.66 cm⁴, Iy = 97.66 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9.5 mm	0.37 in
Diameter (d)	73 mm	2.87 in
Weight	14.9 kg/m	10.00 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,895.17 mm²	2.938 in²
Moment of inertia (Ix)	97.66 cm⁴	2.35 in⁴
Moment of inertia (Iy)	97.66 cm⁴	2.35 in⁴
Elastic section modulus (Sx)	26.76 cm³	1.633 in³
Elastic section modulus (Sy)	26.76 cm³	1.633 in³
Plastic section modulus (Zx)	38.59 cm³	2.355 in³
Plastic section modulus (Zy)	38.59 cm³	2.355 in³
Radius of gyration (rx)	2.27 cm	0.894 in
Radius of gyration (ry)	2.27 cm	0.894 in