CHS 508x12.7 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 508x12.7 steel profile weighs 155.1 kg/m (104.25 lb/ft). Cross-sectional area: 19,761.592 mm². Moment of inertia Ix = 60,639.279 cm⁴, Iy = 60,639.279 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	12.7 mm	0.50 in
Diameter (d)	508 mm	20.00 in
Weight	155.1 kg/m	104.25 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	19,761.59 mm²	30.630 in²
Moment of inertia (Ix)	60,639.28 cm⁴	1456.86 in⁴
Moment of inertia (Iy)	60,639.28 cm⁴	1456.86 in⁴
Elastic section modulus (Sx)	2,387.37 cm³	145.687 in³
Elastic section modulus (Sy)	2,387.37 cm³	145.687 in³
Plastic section modulus (Zx)	3,116.27 cm³	190.167 in³
Plastic section modulus (Zy)	3,116.27 cm³	190.167 in³
Radius of gyration (rx)	17.52 cm	6.897 in
Radius of gyration (ry)	17.52 cm	6.897 in