CHS 457x19 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 457x19 steel profile weighs 205.2 kg/m (137.91 lb/ft). Cross-sectional area: 26,144.334 mm². Moment of inertia Ix = 62,813.397 cm⁴, Iy = 62,813.397 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	19 mm	0.75 in
Diameter (d)	457 mm	17.99 in
Weight	205.2 kg/m	137.91 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	26,144.33 mm²	40.524 in²
Moment of inertia (Ix)	62,813.4 cm⁴	1509.09 in⁴
Moment of inertia (Iy)	62,813.4 cm⁴	1509.09 in⁴
Elastic section modulus (Sx)	2,748.95 cm³	167.752 in³
Elastic section modulus (Sy)	2,748.95 cm³	167.752 in³
Plastic section modulus (Zx)	3,647.32 cm³	222.574 in³
Plastic section modulus (Zy)	3,647.32 cm³	222.574 in³
Radius of gyration (rx)	15.5 cm	6.102 in
Radius of gyration (ry)	15.5 cm	6.102 in