CHS 457x11.1 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 457x11.1 steel profile weighs 122.1 kg/m (82.02 lb/ft). Cross-sectional area: 15,549.281 mm². Moment of inertia Ix = 38,669.123 cm⁴, Iy = 38,669.123 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	11.1 mm	0.44 in
Diameter (d)	457 mm	17.99 in
Weight	122.1 kg/m	82.02 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	15,549.28 mm²	24.101 in²
Moment of inertia (Ix)	38,669.12 cm⁴	929.03 in⁴
Moment of inertia (Iy)	38,669.12 cm⁴	929.03 in⁴
Elastic section modulus (Sx)	1,692.3 cm³	103.271 in³
Elastic section modulus (Sy)	1,692.3 cm³	103.271 in³
Plastic section modulus (Zx)	2,207.43 cm³	134.706 in³
Plastic section modulus (Zy)	2,207.43 cm³	134.706 in³
Radius of gyration (rx)	15.77 cm	6.209 in
Radius of gyration (ry)	15.77 cm	6.209 in