RHS 290x230x8.8 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 290x230 (México) · Caño estructural 290x230 (Argentina)

The RHS 290x230x8.8 steel profile weighs 67.8 kg/m (45.60 lb/ft), has a depth of 290 mm (11.42 in), flange width 230 mm (9.06 in). Cross-sectional area: 8,642.815 mm². Moment of inertia Ix = 10,559.71 cm⁴, Iy = 7,396.005 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	290 mm	11.42 in
Width (b)	230 mm	9.06 in
Thickness (t)	8.8 mm	0.35 in
Fillet radius (r)	17.6 mm	0.69 in
Weight	67.8 kg/m	45.60 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,642.81 mm²	13.396 in²
Moment of inertia (Ix)	10,559.71 cm⁴	253.70 in⁴
Moment of inertia (Iy)	7,396.01 cm⁴	177.69 in⁴
Elastic section modulus (Sx)	728.26 cm³	44.441 in³
Elastic section modulus (Sy)	643.13 cm³	39.246 in³
Plastic section modulus (Zx)	867.05 cm³	52.911 in³
Plastic section modulus (Zy)	740.4 cm³	45.182 in³
Radius of gyration (rx)	11.05 cm	4.352 in
Radius of gyration (ry)	9.25 cm	3.642 in