CHS 38.1x1.06 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 38.1x1.06 steel profile weighs 1.0 kg/m (0.65 lb/ft). Cross-sectional area: 123.346 mm². Moment of inertia Ix = 2.117 cm⁴, Iy = 2.117 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.06 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	1.1 mm	0.04 in
Diameter (d)	38.1 mm	1.50 in
Weight	1.0 kg/m	0.65 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	123.35 mm²	0.191 in²
Moment of inertia (Ix)	2.12 cm⁴	0.05 in⁴
Moment of inertia (Iy)	2.12 cm⁴	0.05 in⁴
Elastic section modulus (Sx)	1.11 cm³	0.068 in³
Elastic section modulus (Sy)	1.11 cm³	0.068 in³
Plastic section modulus (Zx)	1.45 cm³	0.089 in³
Plastic section modulus (Zy)	1.45 cm³	0.089 in³
Radius of gyration (rx)	1.31 cm	0.516 in
Radius of gyration (ry)	1.31 cm	0.516 in