CHS 63.5x4.5 SAISC · Weight & Dimensions

SAISC, 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 63.5x4.5 steel profile weighs 6.5 kg/m (4.40 lb/ft). Cross-sectional area: 834.093 mm². Moment of inertia Ix = 36.505 cm⁴, Iy = 36.505 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.5 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	4.5 mm	0.18 in
Diameter (d)	63.5 mm	2.50 in
Weight	6.5 kg/m	4.40 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	834.09 mm²	1.293 in²
Moment of inertia (Ix)	36.5 cm⁴	0.88 in⁴
Moment of inertia (Iy)	36.5 cm⁴	0.88 in⁴
Elastic section modulus (Sx)	11.5 cm³	0.702 in³
Elastic section modulus (Sy)	11.5 cm³	0.702 in³
Plastic section modulus (Zx)	15.69 cm³	0.958 in³
Plastic section modulus (Zy)	15.69 cm³	0.958 in³
Radius of gyration (rx)	2.09 cm	0.824 in
Radius of gyration (ry)	2.09 cm	0.824 in