CHS 508x49.9 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 508x49.9 steel profile weighs 563.7 kg/m (378.83 lb/ft). Cross-sectional area: 71,814.263 mm². Moment of inertia Ix = 190,618.054 cm⁴, Iy = 190,618.054 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	49.9 mm	1.96 in
Diameter (d)	508 mm	20.00 in
Weight	563.7 kg/m	378.83 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	71,814.26 mm²	111.312 in²
Moment of inertia (Ix)	190,618.05 cm⁴	4579.60 in⁴
Moment of inertia (Iy)	190,618.05 cm⁴	4579.60 in⁴
Elastic section modulus (Sx)	7,504.65 cm³	457.964 in³
Elastic section modulus (Sy)	7,504.65 cm³	457.964 in³
Plastic section modulus (Zx)	10,513.21 cm³	641.558 in³
Plastic section modulus (Zy)	10,513.21 cm³	641.558 in³
Radius of gyration (rx)	16.29 cm	6.414 in
Radius of gyration (ry)	16.29 cm	6.414 in