CHS 63.5x4 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 steel profile weighs 5.9 kg/m (3.94 lb/ft). Cross-sectional area: 747.699 mm². Moment of inertia Ix = 33.238 cm⁴, Iy = 33.238 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4 mm ≈ 8 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	4 mm	0.16 in
Diameter (d)	63.5 mm	2.50 in
Weight	5.9 kg/m	3.94 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	747.7 mm²	1.159 in²
Moment of inertia (Ix)	33.24 cm⁴	0.80 in⁴
Moment of inertia (Iy)	33.24 cm⁴	0.80 in⁴
Elastic section modulus (Sx)	10.47 cm³	0.639 in³
Elastic section modulus (Sy)	10.47 cm³	0.639 in³
Plastic section modulus (Zx)	14.18 cm³	0.865 in³
Plastic section modulus (Zy)	14.18 cm³	0.865 in³
Radius of gyration (rx)	2.11 cm	0.830 in
Radius of gyration (ry)	2.11 cm	0.830 in