RHS 180x120x9.5 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 180x120x9.5 steel profile weighs 40.1 kg/m (26.94 lb/ft), has a depth of 180 mm (7.09 in), flange width 120 mm (4.72 in). Cross-sectional area: 5,106.586 mm². Moment of inertia Ix = 2,138.819 cm⁴, Iy = 1,131.107 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)	9.5 mm	0.37 in
Fillet radius (r)	19 mm	0.75 in
Weight	40.1 kg/m	26.94 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,106.59 mm²	7.915 in²
Moment of inertia (Ix)	2,138.82 cm⁴	51.39 in⁴
Moment of inertia (Iy)	1,131.11 cm⁴	27.17 in⁴
Elastic section modulus (Sx)	237.65 cm³	14.502 in³
Elastic section modulus (Sy)	188.52 cm³	11.504 in³
Plastic section modulus (Zx)	296.99 cm³	18.124 in³
Plastic section modulus (Zy)	223.88 cm³	13.662 in³
Radius of gyration (rx)	6.47 cm	2.548 in
Radius of gyration (ry)	4.71 cm	1.853 in