CHS 55x2 NBE EA-95 · Weight & Dimensions

NBE EA-95, 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 55x2 steel profile weighs 2.6 kg/m (1.75 lb/ft). Cross-sectional area: 333.009 mm². Moment of inertia Ix = 11.709 cm⁴, Iy = 11.709 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2 mm	0.08 in
Diameter (d)	55 mm	2.17 in
Weight	2.6 kg/m	1.75 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	333.01 mm²	0.516 in²
Moment of inertia (Ix)	11.71 cm⁴	0.28 in⁴
Moment of inertia (Iy)	11.71 cm⁴	0.28 in⁴
Elastic section modulus (Sx)	4.26 cm³	0.260 in³
Elastic section modulus (Sy)	4.26 cm³	0.260 in³
Plastic section modulus (Zx)	5.62 cm³	0.343 in³
Plastic section modulus (Zy)	5.62 cm³	0.343 in³
Radius of gyration (rx)	1.88 cm	0.738 in
Radius of gyration (ry)	1.88 cm	0.738 in