CHS 165.1x6 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 165.1x6 steel profile weighs 23.5 kg/m (15.82 lb/ft). Cross-sectional area: 2,998.964 mm². Moment of inertia Ix = 950.252 cm⁴, Iy = 950.252 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)	165.1 mm	6.50 in
Weight	23.5 kg/m	15.82 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,998.96 mm²	4.648 in²
Moment of inertia (Ix)	950.25 cm⁴	22.83 in⁴
Moment of inertia (Iy)	950.25 cm⁴	22.83 in⁴
Elastic section modulus (Sx)	115.11 cm³	7.025 in³
Elastic section modulus (Sy)	115.11 cm³	7.025 in³
Plastic section modulus (Zx)	151.95 cm³	9.273 in³
Plastic section modulus (Zy)	151.95 cm³	9.273 in³
Radius of gyration (rx)	5.63 cm	2.216 in
Radius of gyration (ry)	5.63 cm	2.216 in