CHS 323.9x5.9 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 323.9x5.9 steel profile weighs 46.3 kg/m (31.09 lb/ft). Cross-sectional area: 5,894.256 mm². Moment of inertia Ix = 7,453.199 cm⁴, Iy = 7,453.199 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5.9 mm ≈ 4 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	5.9 mm	0.23 in
Diameter (d)	323.9 mm	12.75 in
Weight	46.3 kg/m	31.09 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,894.26 mm²	9.136 in²
Moment of inertia (Ix)	7,453.2 cm⁴	179.06 in⁴
Moment of inertia (Iy)	7,453.2 cm⁴	179.06 in⁴
Elastic section modulus (Sx)	460.22 cm³	28.084 in³
Elastic section modulus (Sy)	460.22 cm³	28.084 in³
Plastic section modulus (Zx)	596.7 cm³	36.413 in³
Plastic section modulus (Zy)	596.7 cm³	36.413 in³
Radius of gyration (rx)	11.24 cm	4.427 in
Radius of gyration (ry)	11.24 cm	4.427 in