CHS 57x6 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 57x6 steel profile weighs 7.5 kg/m (5.07 lb/ft). Cross-sectional area: 961.327 mm². Moment of inertia Ix = 31.688 cm⁴, Iy = 31.688 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)	57 mm	2.24 in
Weight	7.5 kg/m	5.07 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	961.33 mm²	1.490 in²
Moment of inertia (Ix)	31.69 cm⁴	0.76 in⁴
Moment of inertia (Iy)	31.69 cm⁴	0.76 in⁴
Elastic section modulus (Sx)	11.12 cm³	0.678 in³
Elastic section modulus (Sy)	11.12 cm³	0.678 in³
Plastic section modulus (Zx)	15.68 cm³	0.957 in³
Plastic section modulus (Zy)	15.68 cm³	0.957 in³
Radius of gyration (rx)	1.82 cm	0.715 in
Radius of gyration (ry)	1.82 cm	0.715 in