CHS 508x9.5 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 508x9.5 steel profile weighs 116.8 kg/m (78.48 lb/ft). Cross-sectional area: 14,877.797 mm². Moment of inertia Ix = 46,231.361 cm⁴, Iy = 46,231.361 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9.5 mm	0.37 in
Diameter (d)	508 mm	20.00 in
Weight	116.8 kg/m	78.48 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	14,877.8 mm²	23.061 in²
Moment of inertia (Ix)	46,231.36 cm⁴	1110.71 in⁴
Moment of inertia (Iy)	46,231.36 cm⁴	1110.71 in⁴
Elastic section modulus (Sx)	1,820.13 cm³	111.072 in³
Elastic section modulus (Sy)	1,820.13 cm³	111.072 in³
Plastic section modulus (Zx)	2,361.06 cm³	144.081 in³
Plastic section modulus (Zy)	2,361.06 cm³	144.081 in³
Radius of gyration (rx)	17.63 cm	6.940 in
Radius of gyration (ry)	17.63 cm	6.940 in