CHS 63x9 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 63x9 steel profile weighs 12.0 kg/m (8.06 lb/ft). Cross-sectional area: 1,526.814 mm². Moment of inertia Ix = 57.198 cm⁴, Iy = 57.198 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Thickness (t)	9 mm	0.35 in
Diameter (d)	63 mm	2.48 in
Weight	12.0 kg/m	8.06 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,526.81 mm²	2.367 in²
Moment of inertia (Ix)	57.2 cm⁴	1.37 in⁴
Moment of inertia (Iy)	57.2 cm⁴	1.37 in⁴
Elastic section modulus (Sx)	18.16 cm³	1.108 in³
Elastic section modulus (Sy)	18.16 cm³	1.108 in³
Plastic section modulus (Zx)	26.49 cm³	1.616 in³
Plastic section modulus (Zy)	26.49 cm³	1.616 in³
Radius of gyration (rx)	1.94 cm	0.762 in
Radius of gyration (ry)	1.94 cm	0.762 in