CHS 406.4x11.13 CISC · Weight & Dimensions

CISC, 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 406.4x11.13 steel profile weighs 108.5 kg/m (72.91 lb/ft). Cross-sectional area: 13,820.982 mm². Moment of inertia Ix = 27,013.497 cm⁴, Iy = 27,013.497 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	11.1 mm	0.44 in
Diameter (d)	406.4 mm	16.00 in
Weight	108.5 kg/m	72.91 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	13,820.98 mm²	21.423 in²
Moment of inertia (Ix)	27,013.5 cm⁴	649.00 in⁴
Moment of inertia (Iy)	27,013.5 cm⁴	649.00 in⁴
Elastic section modulus (Sx)	1,329.4 cm³	81.126 in³
Elastic section modulus (Sy)	1,329.4 cm³	81.126 in³
Plastic section modulus (Zx)	1,739.39 cm³	106.145 in³
Plastic section modulus (Zy)	1,739.39 cm³	106.145 in³
Radius of gyration (rx)	13.98 cm	5.504 in
Radius of gyration (ry)	13.98 cm	5.504 in