CHS 323.9x6 SAISC · Weight & Dimensions

SAISC, 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 323.9x6 steel profile weighs 47.0 kg/m (31.61 lb/ft). Cross-sectional area: 5,992.274 mm². Moment of inertia Ix = 7,572.467 cm⁴, Iy = 7,572.467 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6 mm ≈ 4 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	6 mm	0.24 in
Diameter (d)	323.9 mm	12.75 in
Weight	47.0 kg/m	31.61 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,992.27 mm²	9.288 in²
Moment of inertia (Ix)	7,572.47 cm⁴	181.93 in⁴
Moment of inertia (Iy)	7,572.47 cm⁴	181.93 in⁴
Elastic section modulus (Sx)	467.58 cm³	28.534 in³
Elastic section modulus (Sy)	467.58 cm³	28.534 in³
Plastic section modulus (Zx)	606.43 cm³	37.007 in³
Plastic section modulus (Zy)	606.43 cm³	37.007 in³
Radius of gyration (rx)	11.24 cm	4.426 in
Radius of gyration (ry)	11.24 cm	4.426 in