CHS 48.4x3.5 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 48.4x3.5 steel profile weighs 3.9 kg/m (2.61 lb/ft). Cross-sectional area: 493.701 mm². Moment of inertia Ix = 12.517 cm⁴, Iy = 12.517 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)	48.4 mm	1.91 in
Weight	3.9 kg/m	2.61 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	493.7 mm²	0.765 in²
Moment of inertia (Ix)	12.52 cm⁴	0.30 in⁴
Moment of inertia (Iy)	12.52 cm⁴	0.30 in⁴
Elastic section modulus (Sx)	5.17 cm³	0.316 in³
Elastic section modulus (Sy)	5.17 cm³	0.316 in³
Plastic section modulus (Zx)	7.07 cm³	0.431 in³
Plastic section modulus (Zy)	7.07 cm³	0.431 in³
Radius of gyration (rx)	1.59 cm	0.627 in
Radius of gyration (ry)	1.59 cm	0.627 in