CHS 273.1x9.53 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 273.1x9.53 steel profile weighs 62.0 kg/m (41.63 lb/ft). Cross-sectional area: 7,891.122 mm². Moment of inertia Ix = 6,861.327 cm⁴, Iy = 6,861.327 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9.5 mm	0.38 in
Diameter (d)	273.1 mm	10.75 in
Weight	62.0 kg/m	41.63 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	7,891.12 mm²	12.231 in²
Moment of inertia (Ix)	6,861.33 cm⁴	164.84 in⁴
Moment of inertia (Iy)	6,861.33 cm⁴	164.84 in⁴
Elastic section modulus (Sx)	502.48 cm³	30.663 in³
Elastic section modulus (Sy)	502.48 cm³	30.663 in³
Plastic section modulus (Zx)	662.33 cm³	40.418 in³
Plastic section modulus (Zy)	662.33 cm³	40.418 in³
Radius of gyration (rx)	9.32 cm	3.671 in
Radius of gyration (ry)	9.32 cm	3.671 in