CHS 324x28.6 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 324x28.6 steel profile weighs 208.3 kg/m (140.01 lb/ft). Cross-sectional area: 26,541.557 mm². Moment of inertia Ix = 29,221.962 cm⁴, Iy = 29,221.962 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	28.6 mm	1.13 in
Diameter (d)	324 mm	12.76 in
Weight	208.3 kg/m	140.01 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	26,541.56 mm²	41.139 in²
Moment of inertia (Ix)	29,221.96 cm⁴	702.06 in⁴
Moment of inertia (Iy)	29,221.96 cm⁴	702.06 in⁴
Elastic section modulus (Sx)	1,803.82 cm³	110.077 in³
Elastic section modulus (Sy)	1,803.82 cm³	110.077 in³
Plastic section modulus (Zx)	2,503.47 cm³	152.772 in³
Plastic section modulus (Zy)	2,503.47 cm³	152.772 in³
Radius of gyration (rx)	10.49 cm	4.131 in
Radius of gyration (ry)	10.49 cm	4.131 in