CHS 168.3x7.95 CISC · Weight & Dimensions

CISC, 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 168.3x7.95 steel profile weighs 31.4 kg/m (21.13 lb/ft). Cross-sectional area: 4,004.847 mm². Moment of inertia Ix = 1,290.328 cm⁴, Iy = 1,290.328 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8.0 mm	0.31 in
Diameter (d)	168.3 mm	6.63 in
Weight	31.4 kg/m	21.13 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,004.85 mm²	6.208 in²
Moment of inertia (Ix)	1,290.33 cm⁴	31.00 in⁴
Moment of inertia (Iy)	1,290.33 cm⁴	31.00 in⁴
Elastic section modulus (Sx)	153.34 cm³	9.357 in³
Elastic section modulus (Sy)	153.34 cm³	9.357 in³
Plastic section modulus (Zx)	204.58 cm³	12.484 in³
Plastic section modulus (Zy)	204.58 cm³	12.484 in³
Radius of gyration (rx)	5.68 cm	2.235 in
Radius of gyration (ry)	5.68 cm	2.235 in