CHS 457x20 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 457x20 steel profile weighs 215.5 kg/m (144.84 lb/ft). Cross-sectional area: 27,457.52 mm². Moment of inertia Ix = 65,681.476 cm⁴, Iy = 65,681.476 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	20 mm	0.79 in
Diameter (d)	457 mm	17.99 in
Weight	215.5 kg/m	144.84 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	27,457.52 mm²	42.559 in²
Moment of inertia (Ix)	65,681.48 cm⁴	1578.00 in⁴
Moment of inertia (Iy)	65,681.48 cm⁴	1578.00 in⁴
Elastic section modulus (Sx)	2,874.46 cm³	175.411 in³
Elastic section modulus (Sy)	2,874.46 cm³	175.411 in³
Plastic section modulus (Zx)	3,822.05 cm³	233.237 in³
Plastic section modulus (Zy)	3,822.05 cm³	233.237 in³
Radius of gyration (rx)	15.47 cm	6.089 in
Radius of gyration (ry)	15.47 cm	6.089 in