RHS 120x80x11.1 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 120x80 (México) · Caño estructural 120x80 (Argentina)

The RHS 120x80x11.1 steel profile weighs 28.5 kg/m (19.15 lb/ft), has a depth of 120 mm (4.72 in), flange width 80 mm (3.15 in). Cross-sectional area: 3,629.867 mm². Moment of inertia Ix = 595.366 cm⁴, Iy = 309.372 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	80 mm	3.15 in
Thickness (t)	11.1 mm	0.44 in
Fillet radius (r)	22.2 mm	0.87 in
Weight	28.5 kg/m	19.15 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,629.87 mm²	5.626 in²
Moment of inertia (Ix)	595.37 cm⁴	14.30 in⁴
Moment of inertia (Iy)	309.37 cm⁴	7.43 in⁴
Elastic section modulus (Sx)	99.23 cm³	6.055 in³
Elastic section modulus (Sy)	77.34 cm³	4.720 in³
Plastic section modulus (Zx)	131.41 cm³	8.019 in³
Plastic section modulus (Zy)	98.29 cm³	5.998 in³
Radius of gyration (rx)	4.05 cm	1.594 in
Radius of gyration (ry)	2.92 cm	1.149 in