CHS 508x32.5 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 508x32.5 steel profile weighs 381.1 kg/m (256.11 lb/ft). Cross-sectional area: 48,549.387 mm². Moment of inertia Ix = 137,853.862 cm⁴, Iy = 137,853.862 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	32.5 mm	1.28 in
Diameter (d)	508 mm	20.00 in
Weight	381.1 kg/m	256.11 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	48,549.39 mm²	75.252 in²
Moment of inertia (Ix)	137,853.86 cm⁴	3311.94 in⁴
Moment of inertia (Iy)	137,853.86 cm⁴	3311.94 in⁴
Elastic section modulus (Sx)	5,427.32 cm³	331.197 in³
Elastic section modulus (Sy)	5,427.32 cm³	331.197 in³
Plastic section modulus (Zx)	7,359.7 cm³	449.118 in³
Plastic section modulus (Zy)	7,359.7 cm³	449.118 in³
Radius of gyration (rx)	16.85 cm	6.634 in
Radius of gyration (ry)	16.85 cm	6.634 in