CHS 273x4.5 Tata Steel Hybox · Weight & Dimensions

Tata Steel Hybox · 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 273x4.5 steel profile weighs 29.8 kg/m (20.03 lb/ft). Cross-sectional area: 3,795.829 mm². Moment of inertia Ix = 3,421.584 cm⁴, Iy = 3,421.584 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.5 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	4.5 mm	0.18 in
Diameter (d)	273 mm	10.75 in
Weight	29.8 kg/m	20.03 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,795.83 mm²	5.884 in²
Moment of inertia (Ix)	3,421.58 cm⁴	82.20 in⁴
Moment of inertia (Iy)	3,421.58 cm⁴	82.20 in⁴
Elastic section modulus (Sx)	250.67 cm³	15.297 in³
Elastic section modulus (Sy)	250.67 cm³	15.297 in³
Plastic section modulus (Zx)	324.45 cm³	19.799 in³
Plastic section modulus (Zy)	324.45 cm³	19.799 in³
Radius of gyration (rx)	9.49 cm	3.738 in
Radius of gyration (ry)	9.49 cm	3.738 in