CHS 355.6x11.1 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 355.6x11.1 steel profile weighs 94.3 kg/m (63.37 lb/ft). Cross-sectional area: 12,013.293 mm². Moment of inertia Ix = 17,840.26 cm⁴, Iy = 17,840.26 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	11.1 mm	0.44 in
Diameter (d)	355.6 mm	14.00 in
Weight	94.3 kg/m	63.37 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,013.29 mm²	18.621 in²
Moment of inertia (Ix)	17,840.26 cm⁴	428.61 in⁴
Moment of inertia (Iy)	17,840.26 cm⁴	428.61 in⁴
Elastic section modulus (Sx)	1,003.39 cm³	61.231 in³
Elastic section modulus (Sy)	1,003.39 cm³	61.231 in³
Plastic section modulus (Zx)	1,317.81 cm³	80.418 in³
Plastic section modulus (Zy)	1,317.81 cm³	80.418 in³
Radius of gyration (rx)	12.19 cm	4.798 in
Radius of gyration (ry)	12.19 cm	4.798 in