CHS 48.3x2.79 CISC · Weight & Dimensions

CISC, 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 48.3x2.79 steel profile weighs 3.1 kg/m (2.10 lb/ft). Cross-sectional area: 398.897 mm². Moment of inertia Ix = 10.366 cm⁴, Iy = 10.366 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.79 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2.8 mm	0.11 in
Diameter (d)	48.3 mm	1.90 in
Weight	3.1 kg/m	2.10 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	398.9 mm²	0.618 in²
Moment of inertia (Ix)	10.37 cm⁴	0.25 in⁴
Moment of inertia (Iy)	10.37 cm⁴	0.25 in⁴
Elastic section modulus (Sx)	4.29 cm³	0.262 in³
Elastic section modulus (Sy)	4.29 cm³	0.262 in³
Plastic section modulus (Zx)	5.79 cm³	0.353 in³
Plastic section modulus (Zy)	5.79 cm³	0.353 in³
Radius of gyration (rx)	1.61 cm	0.635 in
Radius of gyration (ry)	1.61 cm	0.635 in