CHS 168.3x4.5 Iberian tables · Weight & Dimensions

Iberian tables, cold-formed sections · 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 168.3x4.5 steel profile weighs 18.2 kg/m (12.22 lb/ft). Cross-sectional area: 2,315.668 mm². Moment of inertia Ix = 777.216 cm⁴, Iy = 777.216 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)	168.3 mm	6.63 in
Weight	18.2 kg/m	12.22 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,315.67 mm²	3.589 in²
Moment of inertia (Ix)	777.22 cm⁴	18.67 in⁴
Moment of inertia (Iy)	777.22 cm⁴	18.67 in⁴
Elastic section modulus (Sx)	92.36 cm³	5.636 in³
Elastic section modulus (Sy)	92.36 cm³	5.636 in³
Plastic section modulus (Zx)	120.77 cm³	7.370 in³
Plastic section modulus (Zy)	120.77 cm³	7.370 in³
Radius of gyration (rx)	5.79 cm	2.281 in
Radius of gyration (ry)	5.79 cm	2.281 in