CHS 508x44.5 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 508x44.5 steel profile weighs 508.7 kg/m (341.82 lb/ft). Cross-sectional area: 64,797.705 mm². Moment of inertia Ix = 175,611.904 cm⁴, Iy = 175,611.904 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	44.5 mm	1.75 in
Diameter (d)	508 mm	20.00 in
Weight	508.7 kg/m	341.82 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	64,797.7 mm²	100.436 in²
Moment of inertia (Ix)	175,611.9 cm⁴	4219.08 in⁴
Moment of inertia (Iy)	175,611.9 cm⁴	4219.08 in⁴
Elastic section modulus (Sx)	6,913.85 cm³	421.911 in³
Elastic section modulus (Sy)	6,913.85 cm³	421.911 in³
Plastic section modulus (Zx)	9,589.41 cm³	585.184 in³
Plastic section modulus (Zy)	9,589.41 cm³	585.184 in³
Radius of gyration (rx)	16.46 cm	6.481 in
Radius of gyration (ry)	16.46 cm	6.481 in