CHS 406.4x9.53 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 406.4x9.53 steel profile weighs 93.3 kg/m (62.68 lb/ft). Cross-sectional area: 11,882.041 mm². Moment of inertia Ix = 23,407.118 cm⁴, Iy = 23,407.118 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9.5 mm	0.38 in
Diameter (d)	406.4 mm	16.00 in
Weight	93.3 kg/m	62.68 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	11,882.04 mm²	18.417 in²
Moment of inertia (Ix)	23,407.12 cm⁴	562.36 in⁴
Moment of inertia (Iy)	23,407.12 cm⁴	562.36 in⁴
Elastic section modulus (Sx)	1,151.93 cm³	70.295 in³
Elastic section modulus (Sy)	1,151.93 cm³	70.295 in³
Plastic section modulus (Zx)	1,501.32 cm³	91.616 in³
Plastic section modulus (Zy)	1,501.32 cm³	91.616 in³
Radius of gyration (rx)	14.04 cm	5.526 in
Radius of gyration (ry)	14.04 cm	5.526 in