CHS 19.05x1.25 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 19.05x1.25 steel profile weighs 0.6 kg/m (0.37 lb/ft). Cross-sectional area: 69.9 mm². Moment of inertia Ix = 0.278 cm⁴, Iy = 0.278 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.25 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1.3 mm	0.05 in
Diameter (d)	19.1 mm	0.75 in
Weight	0.6 kg/m	0.37 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	69.9 mm²	0.108 in²
Moment of inertia (Ix)	0.28 cm⁴	0.01 in⁴
Moment of inertia (Iy)	0.28 cm⁴	0.01 in⁴
Elastic section modulus (Sx)	0.29 cm³	0.018 in³
Elastic section modulus (Sy)	0.29 cm³	0.018 in³
Plastic section modulus (Zx)	0.4 cm³	0.024 in³
Plastic section modulus (Zy)	0.4 cm³	0.024 in³
Radius of gyration (rx)	0.63 cm	0.248 in
Radius of gyration (ry)	0.63 cm	0.248 in