CHS 27x2.87 IMCA · Weight & Dimensions

IMCA, 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 27x2.87 steel profile weighs 1.7 kg/m (1.15 lb/ft). Cross-sectional area: 217.565 mm². Moment of inertia Ix = 1.606 cm⁴, Iy = 1.606 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.87 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2.9 mm	0.11 in
Diameter (d)	27 mm	1.06 in
Weight	1.7 kg/m	1.15 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	217.57 mm²	0.337 in²
Moment of inertia (Ix)	1.61 cm⁴	0.04 in⁴
Moment of inertia (Iy)	1.61 cm⁴	0.04 in⁴
Elastic section modulus (Sx)	1.19 cm³	0.073 in³
Elastic section modulus (Sy)	1.19 cm³	0.073 in³
Plastic section modulus (Zx)	1.68 cm³	0.102 in³
Plastic section modulus (Zy)	1.68 cm³	0.102 in³
Radius of gyration (rx)	0.86 cm	0.338 in
Radius of gyration (ry)	0.86 cm	0.338 in