CHS 177.8x6 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 177.8x6 steel profile weighs 25.4 kg/m (17.08 lb/ft). Cross-sectional area: 3,238.354 mm². Moment of inertia Ix = 1,196.217 cm⁴, Iy = 1,196.217 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)	177.8 mm	7.00 in
Weight	25.4 kg/m	17.08 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,238.35 mm²	5.019 in²
Moment of inertia (Ix)	1,196.22 cm⁴	28.74 in⁴
Moment of inertia (Iy)	1,196.22 cm⁴	28.74 in⁴
Elastic section modulus (Sx)	134.56 cm³	8.211 in³
Elastic section modulus (Sy)	134.56 cm³	8.211 in³
Plastic section modulus (Zx)	177.16 cm³	10.811 in³
Plastic section modulus (Zy)	177.16 cm³	10.811 in³
Radius of gyration (rx)	6.08 cm	2.393 in
Radius of gyration (ry)	6.08 cm	2.393 in