CHS 355.6x9.5 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 355.6x9.5 steel profile weighs 81.1 kg/m (54.49 lb/ft). Cross-sectional area: 10,329.4 mm². Moment of inertia Ix = 15,478.019 cm⁴, Iy = 15,478.019 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9.5 mm	0.37 in
Diameter (d)	355.6 mm	14.00 in
Weight	81.1 kg/m	54.49 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,329.4 mm²	16.011 in²
Moment of inertia (Ix)	15,478.02 cm⁴	371.86 in⁴
Moment of inertia (Iy)	15,478.02 cm⁴	371.86 in⁴
Elastic section modulus (Sx)	870.53 cm³	53.123 in³
Elastic section modulus (Sy)	870.53 cm³	53.123 in³
Plastic section modulus (Zx)	1,138.25 cm³	69.460 in³
Plastic section modulus (Zy)	1,138.25 cm³	69.460 in³
Radius of gyration (rx)	12.24 cm	4.819 in
Radius of gyration (ry)	12.24 cm	4.819 in