CHS 168x4 GOST · Weight & Dimensions

GOST, 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 168x4 steel profile weighs 16.2 kg/m (10.87 lb/ft). Cross-sectional area: 2,060.885 mm². Moment of inertia Ix = 693.282 cm⁴, Iy = 693.282 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4 mm ≈ 8 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	4 mm	0.16 in
Diameter (d)	168 mm	6.61 in
Weight	16.2 kg/m	10.87 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,060.88 mm²	3.194 in²
Moment of inertia (Ix)	693.28 cm⁴	16.66 in⁴
Moment of inertia (Iy)	693.28 cm⁴	16.66 in⁴
Elastic section modulus (Sx)	82.53 cm³	5.037 in³
Elastic section modulus (Sy)	82.53 cm³	5.037 in³
Plastic section modulus (Zx)	107.61 cm³	6.567 in³
Plastic section modulus (Zy)	107.61 cm³	6.567 in³
Radius of gyration (rx)	5.8 cm	2.283 in
Radius of gyration (ry)	5.8 cm	2.283 in