CHS 355.6x15.9 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 355.6x15.9 steel profile weighs 133.2 kg/m (89.51 lb/ft). Cross-sectional area: 16,968.464 mm². Moment of inertia Ix = 24,529.803 cm⁴, Iy = 24,529.803 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	15.9 mm	0.63 in
Diameter (d)	355.6 mm	14.00 in
Weight	133.2 kg/m	89.51 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	16,968.46 mm²	26.301 in²
Moment of inertia (Ix)	24,529.8 cm⁴	589.33 in⁴
Moment of inertia (Iy)	24,529.8 cm⁴	589.33 in⁴
Elastic section modulus (Sx)	1,379.63 cm³	84.190 in³
Elastic section modulus (Sy)	1,379.63 cm³	84.190 in³
Plastic section modulus (Zx)	1,836.14 cm³	112.048 in³
Plastic section modulus (Zy)	1,836.14 cm³	112.048 in³
Radius of gyration (rx)	12.02 cm	4.734 in
Radius of gyration (ry)	12.02 cm	4.734 in