CHS 323.9x12.5 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 323.9x12.5 steel profile weighs 96.0 kg/m (64.51 lb/ft). Cross-sectional area: 12,228.649 mm². Moment of inertia Ix = 14,846.53 cm⁴, Iy = 14,846.53 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	12.5 mm	0.49 in
Diameter (d)	323.9 mm	12.75 in
Weight	96.0 kg/m	64.51 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,228.65 mm²	18.954 in²
Moment of inertia (Ix)	14,846.53 cm⁴	356.69 in⁴
Moment of inertia (Iy)	14,846.53 cm⁴	356.69 in⁴
Elastic section modulus (Sx)	916.74 cm³	55.943 in³
Elastic section modulus (Sy)	916.74 cm³	55.943 in³
Plastic section modulus (Zx)	1,212.78 cm³	74.008 in³
Plastic section modulus (Zy)	1,212.78 cm³	74.008 in³
Radius of gyration (rx)	11.02 cm	4.338 in
Radius of gyration (ry)	11.02 cm	4.338 in