CHS 406x9.53 IMCA · Weight & Dimensions

IMCA, 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 406x9.53 steel profile weighs 93.2 kg/m (62.62 lb/ft). Cross-sectional area: 11,870.065 mm². Moment of inertia Ix = 23,336.442 cm⁴, Iy = 23,336.442 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9.5 mm	0.38 in
Diameter (d)	406 mm	15.98 in
Weight	93.2 kg/m	62.62 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	11,870.07 mm²	18.399 in²
Moment of inertia (Ix)	23,336.44 cm⁴	560.66 in⁴
Moment of inertia (Iy)	23,336.44 cm⁴	560.66 in⁴
Elastic section modulus (Sx)	1,149.58 cm³	70.152 in³
Elastic section modulus (Sy)	1,149.58 cm³	70.152 in³
Plastic section modulus (Zx)	1,498.29 cm³	91.432 in³
Plastic section modulus (Zy)	1,498.29 cm³	91.432 in³
Radius of gyration (rx)	14.02 cm	5.520 in
Radius of gyration (ry)	14.02 cm	5.520 in