CHS 323.9x17.5 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 323.9x17.5 steel profile weighs 132.0 kg/m (88.70 lb/ft). Cross-sectional area: 16,845.22 mm². Moment of inertia Ix = 19,832.553 cm⁴, Iy = 19,832.553 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	17.5 mm	0.69 in
Diameter (d)	323.9 mm	12.75 in
Weight	132.0 kg/m	88.70 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	16,845.22 mm²	26.110 in²
Moment of inertia (Ix)	19,832.55 cm⁴	476.48 in⁴
Moment of inertia (Iy)	19,832.55 cm⁴	476.48 in⁴
Elastic section modulus (Sx)	1,224.61 cm³	74.731 in³
Elastic section modulus (Sy)	1,224.61 cm³	74.731 in³
Plastic section modulus (Zx)	1,644.7 cm³	100.366 in³
Plastic section modulus (Zy)	1,644.7 cm³	100.366 in³
Radius of gyration (rx)	10.85 cm	4.272 in
Radius of gyration (ry)	10.85 cm	4.272 in