CHS 42x6 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 42x6 steel profile weighs 5.3 kg/m (3.58 lb/ft). Cross-sectional area: 678.584 mm². Moment of inertia Ix = 11.298 cm⁴, Iy = 11.298 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)	42 mm	1.65 in
Weight	5.3 kg/m	3.58 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	678.58 mm²	1.052 in²
Moment of inertia (Ix)	11.3 cm⁴	0.27 in⁴
Moment of inertia (Iy)	11.3 cm⁴	0.27 in⁴
Elastic section modulus (Sx)	5.38 cm³	0.328 in³
Elastic section modulus (Sy)	5.38 cm³	0.328 in³
Plastic section modulus (Zx)	7.85 cm³	0.479 in³
Plastic section modulus (Zy)	7.85 cm³	0.479 in³
Radius of gyration (rx)	1.29 cm	0.508 in
Radius of gyration (ry)	1.29 cm	0.508 in