CHS 406.4x8.8 Tecnometal · Weight & Dimensions

Tecnometal, cold-formed sections (Spain) · 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 406.4x8.8 steel profile weighs 86.3 kg/m (57.99 lb/ft). Cross-sectional area: 10,992.056 mm². Moment of inertia Ix = 21,731.734 cm⁴, Iy = 21,731.734 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8.8 mm	0.35 in
Diameter (d)	406.4 mm	16.00 in
Weight	86.3 kg/m	57.99 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,992.06 mm²	17.038 in²
Moment of inertia (Ix)	21,731.73 cm⁴	522.10 in⁴
Moment of inertia (Iy)	21,731.73 cm⁴	522.10 in⁴
Elastic section modulus (Sx)	1,069.48 cm³	65.264 in³
Elastic section modulus (Sy)	1,069.48 cm³	65.264 in³
Plastic section modulus (Zx)	1,391.38 cm³	84.908 in³
Plastic section modulus (Zy)	1,391.38 cm³	84.908 in³
Radius of gyration (rx)	14.06 cm	5.536 in
Radius of gyration (ry)	14.06 cm	5.536 in