CHS 19x1.2 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 19x1.2 steel profile weighs 0.5 kg/m (0.36 lb/ft). Cross-sectional area: 67.104 mm². Moment of inertia Ix = 0.267 cm⁴, Iy = 0.267 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.2 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1.2 mm	0.05 in
Diameter (d)	19 mm	0.75 in
Weight	0.5 kg/m	0.36 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	67.1 mm²	0.104 in²
Moment of inertia (Ix)	0.27 cm⁴	0.01 in⁴
Moment of inertia (Iy)	0.27 cm⁴	0.01 in⁴
Elastic section modulus (Sx)	0.28 cm³	0.017 in³
Elastic section modulus (Sy)	0.28 cm³	0.017 in³
Plastic section modulus (Zx)	0.38 cm³	0.023 in³
Plastic section modulus (Zy)	0.38 cm³	0.023 in³
Radius of gyration (rx)	0.63 cm	0.248 in
Radius of gyration (ry)	0.63 cm	0.248 in