CHS 219x18.25 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 219x18.25 steel profile weighs 90.3 kg/m (60.72 lb/ft). Cross-sectional area: 11,509.814 mm². Moment of inertia Ix = 5,846.068 cm⁴, Iy = 5,846.068 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	18.3 mm	0.72 in
Diameter (d)	219 mm	8.62 in
Weight	90.3 kg/m	60.72 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	11,509.81 mm²	17.840 in²
Moment of inertia (Ix)	5,846.07 cm⁴	140.45 in⁴
Moment of inertia (Iy)	5,846.07 cm⁴	140.45 in⁴
Elastic section modulus (Sx)	533.89 cm³	32.580 in³
Elastic section modulus (Sy)	533.89 cm³	32.580 in³
Plastic section modulus (Zx)	737.51 cm³	45.006 in³
Plastic section modulus (Zy)	737.51 cm³	45.006 in³
Radius of gyration (rx)	7.13 cm	2.806 in
Radius of gyration (ry)	7.13 cm	2.806 in