CHS 54x9 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 54x9 steel profile weighs 10.0 kg/m (6.71 lb/ft). Cross-sectional area: 1,272.345 mm². Moment of inertia Ix = 33.494 cm⁴, Iy = 33.494 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9 mm	0.35 in
Diameter (d)	54 mm	2.13 in
Weight	10.0 kg/m	6.71 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,272.35 mm²	1.972 in²
Moment of inertia (Ix)	33.49 cm⁴	0.80 in⁴
Moment of inertia (Iy)	33.49 cm⁴	0.80 in⁴
Elastic section modulus (Sx)	12.41 cm³	0.757 in³
Elastic section modulus (Sy)	12.41 cm³	0.757 in³
Plastic section modulus (Zx)	18.47 cm³	1.127 in³
Plastic section modulus (Zy)	18.47 cm³	1.127 in³
Radius of gyration (rx)	1.62 cm	0.639 in
Radius of gyration (ry)	1.62 cm	0.639 in