CHS 406x26 AHMSA · Weight & Dimensions

AHMSA, 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 406x26 steel profile weighs 243.7 kg/m (163.74 lb/ft). Cross-sectional area: 31,038.935 mm². Moment of inertia Ix = 56,287.557 cm⁴, Iy = 56,287.557 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	26 mm	1.02 in
Diameter (d)	406 mm	15.98 in
Weight	243.7 kg/m	163.74 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	31,038.94 mm²	48.110 in²
Moment of inertia (Ix)	56,287.56 cm⁴	1352.31 in⁴
Moment of inertia (Iy)	56,287.56 cm⁴	1352.31 in⁴
Elastic section modulus (Sx)	2,772.79 cm³	169.206 in³
Elastic section modulus (Sy)	2,772.79 cm³	169.206 in³
Plastic section modulus (Zx)	3,760.26 cm³	229.466 in³
Plastic section modulus (Zy)	3,760.26 cm³	229.466 in³
Radius of gyration (rx)	13.47 cm	5.302 in
Radius of gyration (ry)	13.47 cm	5.302 in