CHS 457x39.7 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 457x39.7 steel profile weighs 408.6 kg/m (274.55 lb/ft). Cross-sectional area: 52,046.169 mm². Moment of inertia Ix = 114,316.404 cm⁴, Iy = 114,316.404 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	39.7 mm	1.56 in
Diameter (d)	457 mm	17.99 in
Weight	408.6 kg/m	274.55 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	52,046.17 mm²	80.672 in²
Moment of inertia (Ix)	114,316.4 cm⁴	2746.45 in⁴
Moment of inertia (Iy)	114,316.4 cm⁴	2746.45 in⁴
Elastic section modulus (Sx)	5,002.91 cm³	305.297 in³
Elastic section modulus (Sy)	5,002.91 cm³	305.297 in³
Plastic section modulus (Zx)	6,934.19 cm³	423.152 in³
Plastic section modulus (Zy)	6,934.19 cm³	423.152 in³
Radius of gyration (rx)	14.82 cm	5.835 in
Radius of gyration (ry)	14.82 cm	5.835 in