CHS 355.6x20 Iberian tables · Weight & Dimensions

Iberian tables, 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 355.6x20 steel profile weighs 165.5 kg/m (111.24 lb/ft). Cross-sectional area: 21,086.37 mm². Moment of inertia Ix = 29,791.709 cm⁴, Iy = 29,791.709 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	20 mm	0.79 in
Diameter (d)	355.6 mm	14.00 in
Weight	165.5 kg/m	111.24 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	21,086.37 mm²	32.684 in²
Moment of inertia (Ix)	29,791.71 cm⁴	715.75 in⁴
Moment of inertia (Iy)	29,791.71 cm⁴	715.75 in⁴
Elastic section modulus (Sx)	1,675.57 cm³	102.250 in³
Elastic section modulus (Sy)	1,675.57 cm³	102.250 in³
Plastic section modulus (Zx)	2,255.21 cm³	137.622 in³
Plastic section modulus (Zy)	2,255.21 cm³	137.622 in³
Radius of gyration (rx)	11.89 cm	4.680 in
Radius of gyration (ry)	11.89 cm	4.680 in