CHS 457x45.2 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 457x45.2 steel profile weighs 459.0 kg/m (308.47 lb/ft). Cross-sectional area: 58,475.595 mm². Moment of inertia Ix = 125,446.437 cm⁴, Iy = 125,446.437 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	45.2 mm	1.78 in
Diameter (d)	457 mm	17.99 in
Weight	459.0 kg/m	308.47 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	58,475.6 mm²	90.637 in²
Moment of inertia (Ix)	125,446.44 cm⁴	3013.85 in⁴
Moment of inertia (Iy)	125,446.44 cm⁴	3013.85 in⁴
Elastic section modulus (Sx)	5,490 cm³	335.022 in³
Elastic section modulus (Sy)	5,490 cm³	335.022 in³
Plastic section modulus (Zx)	7,695.76 cm³	469.626 in³
Plastic section modulus (Zy)	7,695.76 cm³	469.626 in³
Radius of gyration (rx)	14.65 cm	5.766 in
Radius of gyration (ry)	14.65 cm	5.766 in