CHS 324x8.4 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 324x8.4 steel profile weighs 65.4 kg/m (43.94 lb/ft). Cross-sectional area: 8,328.488 mm². Moment of inertia Ix = 10,376.663 cm⁴, Iy = 10,376.663 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	8.4 mm	0.33 in
Diameter (d)	324 mm	12.76 in
Weight	65.4 kg/m	43.94 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,328.49 mm²	12.909 in²
Moment of inertia (Ix)	10,376.66 cm⁴	249.30 in⁴
Moment of inertia (Iy)	10,376.66 cm⁴	249.30 in⁴
Elastic section modulus (Sx)	640.53 cm³	39.088 in³
Elastic section modulus (Sy)	640.53 cm³	39.088 in³
Plastic section modulus (Zx)	836.87 cm³	51.069 in³
Plastic section modulus (Zy)	836.87 cm³	51.069 in³
Radius of gyration (rx)	11.16 cm	4.395 in
Radius of gyration (ry)	11.16 cm	4.395 in