CHS 73x9.53 IMCA · Weight & Dimensions

IMCA, 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 73x9.53 steel profile weighs 14.9 kg/m (10.03 lb/ft). Cross-sectional area: 1,900.252 mm². Moment of inertia Ix = 97.845 cm⁴, Iy = 97.845 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9.5 mm	0.38 in
Diameter (d)	73 mm	2.87 in
Weight	14.9 kg/m	10.03 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,900.25 mm²	2.945 in²
Moment of inertia (Ix)	97.85 cm⁴	2.35 in⁴
Moment of inertia (Iy)	97.85 cm⁴	2.35 in⁴
Elastic section modulus (Sx)	26.81 cm³	1.636 in³
Elastic section modulus (Sy)	26.81 cm³	1.636 in³
Plastic section modulus (Zx)	38.68 cm³	2.360 in³
Plastic section modulus (Zy)	38.68 cm³	2.360 in³
Radius of gyration (rx)	2.27 cm	0.893 in
Radius of gyration (ry)	2.27 cm	0.893 in