CHS 273x18.26 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 273x18.26 steel profile weighs 114.7 kg/m (77.09 lb/ft). Cross-sectional area: 14,613.283 mm². Moment of inertia Ix = 11,914.556 cm⁴, Iy = 11,914.556 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	18.3 mm	0.72 in
Diameter (d)	273 mm	10.75 in
Weight	114.7 kg/m	77.09 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	14,613.28 mm²	22.651 in²
Moment of inertia (Ix)	11,914.56 cm⁴	286.25 in⁴
Moment of inertia (Iy)	11,914.56 cm⁴	286.25 in⁴
Elastic section modulus (Sx)	872.86 cm³	53.265 in³
Elastic section modulus (Sy)	872.86 cm³	53.265 in³
Plastic section modulus (Zx)	1,186.97 cm³	72.433 in³
Plastic section modulus (Zy)	1,186.97 cm³	72.433 in³
Radius of gyration (rx)	9.03 cm	3.555 in
Radius of gyration (ry)	9.03 cm	3.555 in