CHS 50x0.9 Gerdau · Weight & Dimensions

Gerdau, tubes · 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 50x0.9 steel profile weighs 1.1 kg/m (0.73 lb/ft). Cross-sectional area: 138.827 mm². Moment of inertia Ix = 4.185 cm⁴, Iy = 4.185 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 0.9 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	0.9 mm	0.04 in
Diameter (d)	50 mm	1.97 in
Weight	1.1 kg/m	0.73 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	138.83 mm²	0.215 in²
Moment of inertia (Ix)	4.18 cm⁴	0.10 in⁴
Moment of inertia (Iy)	4.18 cm⁴	0.10 in⁴
Elastic section modulus (Sx)	1.67 cm³	0.102 in³
Elastic section modulus (Sy)	1.67 cm³	0.102 in³
Plastic section modulus (Zx)	2.17 cm³	0.132 in³
Plastic section modulus (Zy)	2.17 cm³	0.132 in³
Radius of gyration (rx)	1.74 cm	0.684 in
Radius of gyration (ry)	1.74 cm	0.684 in