CHS 88.9x7.95 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 88.9x7.95 steel profile weighs 15.9 kg/m (10.66 lb/ft). Cross-sectional area: 2,021.78 mm². Moment of inertia Ix = 167.204 cm⁴, Iy = 167.204 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8.0 mm	0.31 in
Diameter (d)	88.9 mm	3.50 in
Weight	15.9 kg/m	10.66 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,021.78 mm²	3.134 in²
Moment of inertia (Ix)	167.2 cm⁴	4.02 in⁴
Moment of inertia (Iy)	167.2 cm⁴	4.02 in⁴
Elastic section modulus (Sx)	37.62 cm³	2.295 in³
Elastic section modulus (Sy)	37.62 cm³	2.295 in³
Plastic section modulus (Zx)	52.26 cm³	3.189 in³
Plastic section modulus (Zy)	52.26 cm³	3.189 in³
Radius of gyration (rx)	2.88 cm	1.132 in
Radius of gyration (ry)	2.88 cm	1.132 in