RHS 120x80x9.5 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 120x80 (México) · Caño estructural 120x80 (Argentina)

The RHS 120x80x9.5 steel profile weighs 25.2 kg/m (16.91 lb/ft), has a depth of 120 mm (4.72 in), flange width 80 mm (3.15 in). Cross-sectional area: 3,206.586 mm². Moment of inertia Ix = 549.692 cm⁴, Iy = 287.209 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)	9.5 mm	0.37 in
Fillet radius (r)	19 mm	0.75 in
Weight	25.2 kg/m	16.91 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,206.59 mm²	4.970 in²
Moment of inertia (Ix)	549.69 cm⁴	13.21 in⁴
Moment of inertia (Iy)	287.21 cm⁴	6.90 in⁴
Elastic section modulus (Sx)	91.62 cm³	5.591 in³
Elastic section modulus (Sy)	71.8 cm³	4.382 in³
Plastic section modulus (Zx)	118.9 cm³	7.256 in³
Plastic section modulus (Zy)	89.16 cm³	5.441 in³
Radius of gyration (rx)	4.14 cm	1.630 in
Radius of gyration (ry)	2.99 cm	1.178 in