CHS 273.1x11.13 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 273.1x11.13 steel profile weighs 71.9 kg/m (48.32 lb/ft). Cross-sectional area: 9,160.024 mm². Moment of inertia Ix = 7,872.142 cm⁴, Iy = 7,872.142 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	11.1 mm	0.44 in
Diameter (d)	273.1 mm	10.75 in
Weight	71.9 kg/m	48.32 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,160.02 mm²	14.198 in²
Moment of inertia (Ix)	7,872.14 cm⁴	189.13 in⁴
Moment of inertia (Iy)	7,872.14 cm⁴	189.13 in⁴
Elastic section modulus (Sx)	576.5 cm³	35.180 in³
Elastic section modulus (Sy)	576.5 cm³	35.180 in³
Plastic section modulus (Zx)	764.29 cm³	46.640 in³
Plastic section modulus (Zy)	764.29 cm³	46.640 in³
Radius of gyration (rx)	9.27 cm	3.650 in
Radius of gyration (ry)	9.27 cm	3.650 in