CHS 101.6x1.55 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 101.6x1.55 steel profile weighs 3.8 kg/m (2.57 lb/ft). Cross-sectional area: 487.19 mm². Moment of inertia Ix = 60.974 cm⁴, Iy = 60.974 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.55 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1.6 mm	0.06 in
Diameter (d)	101.6 mm	4.00 in
Weight	3.8 kg/m	2.57 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	487.19 mm²	0.755 in²
Moment of inertia (Ix)	60.97 cm⁴	1.46 in⁴
Moment of inertia (Iy)	60.97 cm⁴	1.46 in⁴
Elastic section modulus (Sx)	12 cm³	0.732 in³
Elastic section modulus (Sy)	12 cm³	0.732 in³
Plastic section modulus (Zx)	15.52 cm³	0.947 in³
Plastic section modulus (Zy)	15.52 cm³	0.947 in³
Radius of gyration (rx)	3.54 cm	1.393 in
Radius of gyration (ry)	3.54 cm	1.393 in