CHS 813x20 Tuboeuropa · Weight & Dimensions

Tuboeuropa, 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 813x20 steel profile weighs 390.9 kg/m (262.70 lb/ft). Cross-sectional area: 49,825.659 mm². Moment of inertia Ix = 391,909.33 cm⁴, Iy = 391,909.33 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	20 mm	0.79 in
Diameter (d)	813 mm	32.01 in
Weight	390.9 kg/m	262.70 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	49,825.66 mm²	77.230 in²
Moment of inertia (Ix)	391,909.33 cm⁴	9415.62 in⁴
Moment of inertia (Iy)	391,909.33 cm⁴	9415.62 in⁴
Elastic section modulus (Sx)	9,641.07 cm³	588.336 in³
Elastic section modulus (Sy)	9,641.07 cm³	588.336 in³
Plastic section modulus (Zx)	12,579.65 cm³	767.660 in³
Plastic section modulus (Zy)	12,579.65 cm³	767.660 in³
Radius of gyration (rx)	28.05 cm	11.042 in
Radius of gyration (ry)	28.05 cm	11.042 in