CHS 168.3x7.1 Tecnometal · Weight & Dimensions

Tecnometal, cold-formed sections (Brazil) · 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 168.3x7.1 steel profile weighs 28.2 kg/m (18.97 lb/ft). Cross-sectional area: 3,595.616 mm². Moment of inertia Ix = 1,170.186 cm⁴, Iy = 1,170.186 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	7.1 mm	0.28 in
Diameter (d)	168.3 mm	6.63 in
Weight	28.2 kg/m	18.97 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,595.62 mm²	5.573 in²
Moment of inertia (Ix)	1,170.19 cm⁴	28.11 in⁴
Moment of inertia (Iy)	1,170.19 cm⁴	28.11 in⁴
Elastic section modulus (Sx)	139.06 cm³	8.486 in³
Elastic section modulus (Sy)	139.06 cm³	8.486 in³
Plastic section modulus (Zx)	184.62 cm³	11.266 in³
Plastic section modulus (Zy)	184.62 cm³	11.266 in³
Radius of gyration (rx)	5.7 cm	2.246 in
Radius of gyration (ry)	5.7 cm	2.246 in