CHS 323.9x5 Tata Steel Celsius · Weight & Dimensions

Tata Steel Celsius · 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 steel profile weighs 39.3 kg/m (26.41 lb/ft). Cross-sectional area: 5,009.269 mm². Moment of inertia Ix = 6,369.425 cm⁴, Iy = 6,369.425 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5 mm ≈ 6 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	5 mm	0.20 in
Diameter (d)	323.9 mm	12.75 in
Weight	39.3 kg/m	26.41 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,009.27 mm²	7.764 in²
Moment of inertia (Ix)	6,369.42 cm⁴	153.03 in⁴
Moment of inertia (Iy)	6,369.42 cm⁴	153.03 in⁴
Elastic section modulus (Sx)	393.3 cm³	24.000 in³
Elastic section modulus (Sy)	393.3 cm³	24.000 in³
Plastic section modulus (Zx)	508.53 cm³	31.032 in³
Plastic section modulus (Zy)	508.53 cm³	31.032 in³
Radius of gyration (rx)	11.28 cm	4.439 in
Radius of gyration (ry)	11.28 cm	4.439 in