CHS 26.7x3.91 Hylsa · Weight & Dimensions

Hylsa, 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 26.7x3.91 steel profile weighs 2.2 kg/m (1.48 lb/ft). Cross-sectional area: 279.944 mm². Moment of inertia Ix = 1.871 cm⁴, Iy = 1.871 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.91 mm ≈ 9 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	3.9 mm	0.15 in
Diameter (d)	26.7 mm	1.05 in
Weight	2.2 kg/m	1.48 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	279.94 mm²	0.434 in²
Moment of inertia (Ix)	1.87 cm⁴	0.04 in⁴
Moment of inertia (Iy)	1.87 cm⁴	0.04 in⁴
Elastic section modulus (Sx)	1.4 cm³	0.086 in³
Elastic section modulus (Sy)	1.4 cm³	0.086 in³
Plastic section modulus (Zx)	2.05 cm³	0.125 in³
Plastic section modulus (Zy)	2.05 cm³	0.125 in³
Radius of gyration (rx)	0.82 cm	0.322 in
Radius of gyration (ry)	0.82 cm	0.322 in