CHS 324x33.3 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 324x33.3 steel profile weighs 238.7 kg/m (160.43 lb/ft). Cross-sectional area: 30,411.591 mm². Moment of inertia Ix = 32,546.249 cm⁴, Iy = 32,546.249 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	33.3 mm	1.31 in
Diameter (d)	324 mm	12.76 in
Weight	238.7 kg/m	160.43 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	30,411.59 mm²	47.138 in²
Moment of inertia (Ix)	32,546.25 cm⁴	781.92 in⁴
Moment of inertia (Iy)	32,546.25 cm⁴	781.92 in⁴
Elastic section modulus (Sx)	2,009.03 cm³	122.599 in³
Elastic section modulus (Sy)	2,009.03 cm³	122.599 in³
Plastic section modulus (Zx)	2,826.37 cm³	172.477 in³
Plastic section modulus (Zy)	2,826.37 cm³	172.477 in³
Radius of gyration (rx)	10.35 cm	4.073 in
Radius of gyration (ry)	10.35 cm	4.073 in