CHS 219x8.18 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 219x8.18 steel profile weighs 42.5 kg/m (28.58 lb/ft). Cross-sectional area: 5,417.7 mm². Moment of inertia Ix = 3,014.407 cm⁴, Iy = 3,014.407 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8.2 mm	0.32 in
Diameter (d)	219 mm	8.62 in
Weight	42.5 kg/m	28.58 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,417.7 mm²	8.397 in²
Moment of inertia (Ix)	3,014.41 cm⁴	72.42 in⁴
Moment of inertia (Iy)	3,014.41 cm⁴	72.42 in⁴
Elastic section modulus (Sx)	275.29 cm³	16.799 in³
Elastic section modulus (Sy)	275.29 cm³	16.799 in³
Plastic section modulus (Zx)	363.74 cm³	22.197 in³
Plastic section modulus (Zy)	363.74 cm³	22.197 in³
Radius of gyration (rx)	7.46 cm	2.937 in
Radius of gyration (ry)	7.46 cm	2.937 in