RHS 180x120x12.7 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 180x120x12.7 steel profile weighs 51.5 kg/m (34.60 lb/ft), has a depth of 180 mm (7.09 in), flange width 120 mm (4.72 in). Cross-sectional area: 6,559.482 mm². Moment of inertia Ix = 2,600.794 cm⁴, Iy = 1,364.054 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)	12.7 mm	0.50 in
Fillet radius (r)	25.4 mm	1.00 in
Weight	51.5 kg/m	34.60 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,559.48 mm²	10.167 in²
Moment of inertia (Ix)	2,600.79 cm⁴	62.48 in⁴
Moment of inertia (Iy)	1,364.05 cm⁴	32.77 in⁴
Elastic section modulus (Sx)	288.98 cm³	17.635 in³
Elastic section modulus (Sy)	227.34 cm³	13.873 in³
Plastic section modulus (Zx)	370.35 cm³	22.600 in³
Plastic section modulus (Zy)	278.18 cm³	16.976 in³
Radius of gyration (rx)	6.3 cm	2.479 in
Radius of gyration (ry)	4.56 cm	1.795 in