CHS 57x11 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 57x11 steel profile weighs 12.5 kg/m (8.39 lb/ft). Cross-sectional area: 1,589.646 mm². Moment of inertia Ix = 44.45 cm⁴, Iy = 44.45 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	11 mm	0.43 in
Diameter (d)	57 mm	2.24 in
Weight	12.5 kg/m	8.39 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,589.65 mm²	2.464 in²
Moment of inertia (Ix)	44.45 cm⁴	1.07 in⁴
Moment of inertia (Iy)	44.45 cm⁴	1.07 in⁴
Elastic section modulus (Sx)	15.6 cm³	0.952 in³
Elastic section modulus (Sy)	15.6 cm³	0.952 in³
Plastic section modulus (Zx)	23.72 cm³	1.447 in³
Plastic section modulus (Zy)	23.72 cm³	1.447 in³
Radius of gyration (rx)	1.67 cm	0.658 in
Radius of gyration (ry)	1.67 cm	0.658 in