CHS 133x17 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 133x17 steel profile weighs 48.6 kg/m (32.68 lb/ft). Cross-sectional area: 6,195.221 mm². Moment of inertia Ix = 1,064.416 cm⁴, Iy = 1,064.416 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	17 mm	0.67 in
Diameter (d)	133 mm	5.24 in
Weight	48.6 kg/m	32.68 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,195.22 mm²	9.603 in²
Moment of inertia (Ix)	1,064.42 cm⁴	25.57 in⁴
Moment of inertia (Iy)	1,064.42 cm⁴	25.57 in⁴
Elastic section modulus (Sx)	160.06 cm³	9.768 in³
Elastic section modulus (Sy)	160.06 cm³	9.768 in³
Plastic section modulus (Zx)	230.39 cm³	14.059 in³
Plastic section modulus (Zy)	230.39 cm³	14.059 in³
Radius of gyration (rx)	4.15 cm	1.632 in
Radius of gyration (ry)	4.15 cm	1.632 in