CHS 50x3.5 Hiasa · Weight & Dimensions

Hiasa, 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 50x3.5 steel profile weighs 4.0 kg/m (2.69 lb/ft). Cross-sectional area: 511.294 mm². Moment of inertia Ix = 13.898 cm⁴, Iy = 13.898 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)	50 mm	1.97 in
Weight	4.0 kg/m	2.69 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	511.29 mm²	0.793 in²
Moment of inertia (Ix)	13.9 cm⁴	0.33 in⁴
Moment of inertia (Iy)	13.9 cm⁴	0.33 in⁴
Elastic section modulus (Sx)	5.56 cm³	0.339 in³
Elastic section modulus (Sy)	5.56 cm³	0.339 in³
Plastic section modulus (Zx)	7.58 cm³	0.463 in³
Plastic section modulus (Zy)	7.58 cm³	0.463 in³
Radius of gyration (rx)	1.65 cm	0.649 in
Radius of gyration (ry)	1.65 cm	0.649 in