CHS 355.6x11.9 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 355.6x11.9 steel profile weighs 100.9 kg/m (67.78 lb/ft). Cross-sectional area: 12,849.208 mm². Moment of inertia Ix = 18,996.157 cm⁴, Iy = 18,996.157 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	11.9 mm	0.47 in
Diameter (d)	355.6 mm	14.00 in
Weight	100.9 kg/m	67.78 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,849.21 mm²	19.916 in²
Moment of inertia (Ix)	18,996.16 cm⁴	456.38 in⁴
Moment of inertia (Iy)	18,996.16 cm⁴	456.38 in⁴
Elastic section modulus (Sx)	1,068.4 cm³	65.198 in³
Elastic section modulus (Sy)	1,068.4 cm³	65.198 in³
Plastic section modulus (Zx)	1,406.31 cm³	85.818 in³
Plastic section modulus (Zy)	1,406.31 cm³	85.818 in³
Radius of gyration (rx)	12.16 cm	4.787 in
Radius of gyration (ry)	12.16 cm	4.787 in