CHS 273x28.6 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 273x28.6 steel profile weighs 172.4 kg/m (115.84 lb/ft). Cross-sectional area: 21,959.23 mm². Moment of inertia Ix = 16,620.206 cm⁴, Iy = 16,620.206 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	28.6 mm	1.13 in
Diameter (d)	273 mm	10.75 in
Weight	172.4 kg/m	115.84 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	21,959.23 mm²	34.037 in²
Moment of inertia (Ix)	16,620.21 cm⁴	399.30 in⁴
Moment of inertia (Iy)	16,620.21 cm⁴	399.30 in⁴
Elastic section modulus (Sx)	1,217.6 cm³	74.303 in³
Elastic section modulus (Sy)	1,217.6 cm³	74.303 in³
Plastic section modulus (Zx)	1,716.11 cm³	104.724 in³
Plastic section modulus (Zy)	1,716.11 cm³	104.724 in³
Radius of gyration (rx)	8.7 cm	3.425 in
Radius of gyration (ry)	8.7 cm	3.425 in