RHS 180x120x8.2 Açotubo · Weight & Dimensions

Açotubo, cold-formed sections · Rectangular Hollow Section

Rectangular Hollow Sections (RHS) are tubular profiles with excellent torsional resistance and aesthetic appeal. Used for columns, trusses, and exposed structural elements.

Also known as: PTR 180x120 (México) · Caño estructural 180x120 (Argentina)

The RHS 180x120x8.2 steel profile weighs 35.1 kg/m (23.62 lb/ft), has a depth of 180 mm (7.09 in), flange width 120 mm (4.72 in). Cross-sectional area: 4,477.882 mm². Moment of inertia Ix = 1,916.291 cm⁴, Iy = 1,016.993 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	180 mm	7.09 in
Width (b)	120 mm	4.72 in
Thickness (t)	8.2 mm	0.32 in
Fillet radius (r)	16.4 mm	0.65 in
Weight	35.1 kg/m	23.62 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,477.88 mm²	6.941 in²
Moment of inertia (Ix)	1,916.29 cm⁴	46.04 in⁴
Moment of inertia (Iy)	1,016.99 cm⁴	24.43 in⁴
Elastic section modulus (Sx)	212.92 cm³	12.993 in³
Elastic section modulus (Sy)	169.5 cm³	10.343 in³
Plastic section modulus (Zx)	263.47 cm³	16.078 in³
Plastic section modulus (Zy)	198.9 cm³	12.138 in³
Radius of gyration (rx)	6.54 cm	2.575 in
Radius of gyration (ry)	4.77 cm	1.876 in