CHS 31.75x2 Acindar · Weight & Dimensions

Acindar, 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 31.75x2 steel profile weighs 1.5 kg/m (0.99 lb/ft). Cross-sectional area: 186.925 mm². Moment of inertia Ix = 2.077 cm⁴, Iy = 2.077 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2 mm	0.08 in
Diameter (d)	31.8 mm	1.25 in
Weight	1.5 kg/m	0.99 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	186.92 mm²	0.290 in²
Moment of inertia (Ix)	2.08 cm⁴	0.05 in⁴
Moment of inertia (Iy)	2.08 cm⁴	0.05 in⁴
Elastic section modulus (Sx)	1.31 cm³	0.080 in³
Elastic section modulus (Sy)	1.31 cm³	0.080 in³
Plastic section modulus (Zx)	1.77 cm³	0.108 in³
Plastic section modulus (Zy)	1.77 cm³	0.108 in³
Radius of gyration (rx)	1.05 cm	0.415 in
Radius of gyration (ry)	1.05 cm	0.415 in