CHS 324x17.4 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 324x17.4 steel profile weighs 131.6 kg/m (88.42 lb/ft). Cross-sectional area: 16,759.894 mm². Moment of inertia Ix = 19,757.049 cm⁴, Iy = 19,757.049 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	17.4 mm	0.69 in
Diameter (d)	324 mm	12.76 in
Weight	131.6 kg/m	88.42 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	16,759.89 mm²	25.978 in²
Moment of inertia (Ix)	19,757.05 cm⁴	474.66 in⁴
Moment of inertia (Iy)	19,757.05 cm⁴	474.66 in⁴
Elastic section modulus (Sx)	1,219.57 cm³	74.423 in³
Elastic section modulus (Sy)	1,219.57 cm³	74.423 in³
Plastic section modulus (Zx)	1,637.42 cm³	99.922 in³
Plastic section modulus (Zy)	1,637.42 cm³	99.922 in³
Radius of gyration (rx)	10.86 cm	4.275 in
Radius of gyration (ry)	10.86 cm	4.275 in