CHS 33.4x2.54 CISC · Weight & Dimensions

CISC, 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 33.4x2.54 steel profile weighs 1.9 kg/m (1.30 lb/ft). Cross-sectional area: 246.252 mm². Moment of inertia Ix = 2.951 cm⁴, Iy = 2.951 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.54 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Thickness (t)	2.5 mm	0.10 in
Diameter (d)	33.4 mm	1.31 in
Weight	1.9 kg/m	1.30 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	246.25 mm²	0.382 in²
Moment of inertia (Ix)	2.95 cm⁴	0.07 in⁴
Moment of inertia (Iy)	2.95 cm⁴	0.07 in⁴
Elastic section modulus (Sx)	1.77 cm³	0.108 in³
Elastic section modulus (Sy)	1.77 cm³	0.108 in³
Plastic section modulus (Zx)	2.42 cm³	0.148 in³
Plastic section modulus (Zy)	2.42 cm³	0.148 in³
Radius of gyration (rx)	1.09 cm	0.431 in
Radius of gyration (ry)	1.09 cm	0.431 in