CHS 324x6.35 IMCA · Weight & Dimensions

IMCA, 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 324x6.35 steel profile weighs 49.7 kg/m (33.43 lb/ft). Cross-sectional area: 6,336.836 mm². Moment of inertia Ix = 7,995.649 cm⁴, Iy = 7,995.649 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.35 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	6.3 mm	0.25 in
Diameter (d)	324 mm	12.76 in
Weight	49.7 kg/m	33.43 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,336.84 mm²	9.822 in²
Moment of inertia (Ix)	7,995.65 cm⁴	192.10 in⁴
Moment of inertia (Iy)	7,995.65 cm⁴	192.10 in⁴
Elastic section modulus (Sx)	493.56 cm³	30.119 in³
Elastic section modulus (Sy)	493.56 cm³	30.119 in³
Plastic section modulus (Zx)	640.81 cm³	39.105 in³
Plastic section modulus (Zy)	640.81 cm³	39.105 in³
Radius of gyration (rx)	11.23 cm	4.422 in
Radius of gyration (ry)	11.23 cm	4.422 in