CHS 42.4x2.0 · Weight & Dimensions

EN — 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 42.4x2.0 steel profile weighs 2.0 kg/m (1.34 lb/ft). Cross-sectional area: 253.8 mm². Moment of inertia Ix = 5.19 cm⁴, Iy = 5.19 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)	42.4 mm	1.67 in
Weight	2.0 kg/m	1.34 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	253.8 mm²	0.393 in²
Moment of inertia (Ix)	5.19 cm⁴	0.12 in⁴
Moment of inertia (Iy)	5.19 cm⁴	0.12 in⁴
Elastic section modulus (Sx)	2.45 cm³	0.150 in³
Elastic section modulus (Sy)	2.45 cm³	0.150 in³
Plastic section modulus (Zx)	3.27 cm³	0.200 in³
Plastic section modulus (Zy)	3.27 cm³	0.200 in³
Radius of gyration (rx)	1.43 cm	0.563 in
Radius of gyration (ry)	1.43 cm	0.563 in