CHS 133x16 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 133x16 steel profile weighs 46.2 kg/m (31.03 lb/ft). Cross-sectional area: 5,881.061 mm². Moment of inertia Ix = 1,025.143 cm⁴, Iy = 1,025.143 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	16 mm	0.63 in
Diameter (d)	133 mm	5.24 in
Weight	46.2 kg/m	31.03 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,881.06 mm²	9.116 in²
Moment of inertia (Ix)	1,025.14 cm⁴	24.63 in⁴
Moment of inertia (Iy)	1,025.14 cm⁴	24.63 in⁴
Elastic section modulus (Sx)	154.16 cm³	9.407 in³
Elastic section modulus (Sy)	154.16 cm³	9.407 in³
Plastic section modulus (Zx)	220.39 cm³	13.449 in³
Plastic section modulus (Zy)	220.39 cm³	13.449 in³
Radius of gyration (rx)	4.18 cm	1.644 in
Radius of gyration (ry)	4.18 cm	1.644 in