RHS 280x240x11.1 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 280x240 (México) · Caño estructural 280x240 (Argentina)

The RHS 280x240x11.1 steel profile weighs 84.3 kg/m (56.62 lb/ft), has a depth of 280 mm (11.02 in), flange width 240 mm (9.45 in). Cross-sectional area: 10,733.867 mm². Moment of inertia Ix = 12,203.362 cm⁴, Iy = 9,619.17 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	280 mm	11.02 in
Width (b)	240 mm	9.45 in
Thickness (t)	11.1 mm	0.44 in
Fillet radius (r)	22.2 mm	0.87 in
Weight	84.3 kg/m	56.62 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	10,733.87 mm²	16.637 in²
Moment of inertia (Ix)	12,203.36 cm⁴	293.19 in⁴
Moment of inertia (Iy)	9,619.17 cm⁴	231.10 in⁴
Elastic section modulus (Sx)	871.67 cm³	53.193 in³
Elastic section modulus (Sy)	801.6 cm³	48.917 in³
Plastic section modulus (Zx)	1,041.45 cm³	63.553 in³
Plastic section modulus (Zy)	937.28 cm³	57.197 in³
Radius of gyration (rx)	10.66 cm	4.198 in
Radius of gyration (ry)	9.47 cm	3.727 in