CHS 324x21.4 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 324x21.4 steel profile weighs 159.7 kg/m (107.32 lb/ft). Cross-sectional area: 20,343.823 mm². Moment of inertia Ix = 23,401.683 cm⁴, Iy = 23,401.683 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	21.4 mm	0.84 in
Diameter (d)	324 mm	12.76 in
Weight	159.7 kg/m	107.32 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	20,343.82 mm²	31.533 in²
Moment of inertia (Ix)	23,401.68 cm⁴	562.23 in⁴
Moment of inertia (Iy)	23,401.68 cm⁴	562.23 in⁴
Elastic section modulus (Sx)	1,444.55 cm³	88.152 in³
Elastic section modulus (Sy)	1,444.55 cm³	88.152 in³
Plastic section modulus (Zx)	1,962.8 cm³	119.778 in³
Plastic section modulus (Zy)	1,962.8 cm³	119.778 in³
Radius of gyration (rx)	10.73 cm	4.223 in
Radius of gyration (ry)	10.73 cm	4.223 in