CHS 273x9.3 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 273x9.3 steel profile weighs 60.5 kg/m (40.64 lb/ft). Cross-sectional area: 7,704.473 mm². Moment of inertia Ix = 6,705.22 cm⁴, Iy = 6,705.22 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9.3 mm	0.37 in
Diameter (d)	273 mm	10.75 in
Weight	60.5 kg/m	40.64 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	7,704.47 mm²	11.942 in²
Moment of inertia (Ix)	6,705.22 cm⁴	161.09 in⁴
Moment of inertia (Iy)	6,705.22 cm⁴	161.09 in⁴
Elastic section modulus (Sx)	491.22 cm³	29.977 in³
Elastic section modulus (Sy)	491.22 cm³	29.977 in³
Plastic section modulus (Zx)	646.97 cm³	39.481 in³
Plastic section modulus (Zy)	646.97 cm³	39.481 in³
Radius of gyration (rx)	9.33 cm	3.673 in
Radius of gyration (ry)	9.33 cm	3.673 in