CHS 273x25.4 AHMSA · Weight & Dimensions

AHMSA, 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 273x25.4 steel profile weighs 155.1 kg/m (104.23 lb/ft). Cross-sectional area: 19,757.602 mm². Moment of inertia Ix = 15,300.02 cm⁴, Iy = 15,300.02 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	25.4 mm	1.00 in
Diameter (d)	273 mm	10.75 in
Weight	155.1 kg/m	104.23 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	19,757.6 mm²	30.624 in²
Moment of inertia (Ix)	15,300.02 cm⁴	367.58 in⁴
Moment of inertia (Iy)	15,300.02 cm⁴	367.58 in⁴
Elastic section modulus (Sx)	1,120.88 cm³	68.401 in³
Elastic section modulus (Sy)	1,120.88 cm³	68.401 in³
Plastic section modulus (Zx)	1,562.63 cm³	95.358 in³
Plastic section modulus (Zy)	1,562.63 cm³	95.358 in³
Radius of gyration (rx)	8.8 cm	3.465 in
Radius of gyration (ry)	8.8 cm	3.465 in