CHS 63.5x3.5 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 63.5x3.5 steel profile weighs 5.2 kg/m (3.48 lb/ft). Cross-sectional area: 659.734 mm². Moment of inertia Ix = 29.789 cm⁴, Iy = 29.789 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.5 mm ≈ 10 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	3.5 mm	0.14 in
Diameter (d)	63.5 mm	2.50 in
Weight	5.2 kg/m	3.48 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	659.73 mm²	1.023 in²
Moment of inertia (Ix)	29.79 cm⁴	0.72 in⁴
Moment of inertia (Iy)	29.79 cm⁴	0.72 in⁴
Elastic section modulus (Sx)	9.38 cm³	0.573 in³
Elastic section modulus (Sy)	9.38 cm³	0.573 in³
Plastic section modulus (Zx)	12.61 cm³	0.770 in³
Plastic section modulus (Zy)	12.61 cm³	0.770 in³
Radius of gyration (rx)	2.12 cm	0.837 in
Radius of gyration (ry)	2.12 cm	0.837 in