CHS 323.9x6.3 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 323.9x6.3 steel profile weighs 49.3 kg/m (33.13 lb/ft). Cross-sectional area: 6,285.95 mm². Moment of inertia Ix = 7,928.897 cm⁴, Iy = 7,928.897 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.3 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	6.3 mm	0.25 in
Diameter (d)	323.9 mm	12.75 in
Weight	49.3 kg/m	33.13 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,285.95 mm²	9.743 in²
Moment of inertia (Ix)	7,928.9 cm⁴	190.49 in⁴
Moment of inertia (Iy)	7,928.9 cm⁴	190.49 in⁴
Elastic section modulus (Sx)	489.59 cm³	29.877 in³
Elastic section modulus (Sy)	489.59 cm³	29.877 in³
Plastic section modulus (Zx)	635.56 cm³	38.785 in³
Plastic section modulus (Zy)	635.56 cm³	38.785 in³
Radius of gyration (rx)	11.23 cm	4.422 in
Radius of gyration (ry)	11.23 cm	4.422 in