RHS 280x240x9.5 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 280x240 (México) · Caño estructural 280x240 (Argentina)

The RHS 280x240x9.5 steel profile weighs 72.9 kg/m (48.99 lb/ft), has a depth of 280 mm (11.02 in), flange width 240 mm (9.45 in). Cross-sectional area: 9,286.586 mm². Moment of inertia Ix = 10,716.141 cm⁴, Iy = 8,454.751 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)	9.5 mm	0.37 in
Fillet radius (r)	19 mm	0.75 in
Weight	72.9 kg/m	48.99 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,286.59 mm²	14.394 in²
Moment of inertia (Ix)	10,716.14 cm⁴	257.46 in⁴
Moment of inertia (Iy)	8,454.75 cm⁴	203.13 in⁴
Elastic section modulus (Sx)	765.44 cm³	46.710 in³
Elastic section modulus (Sy)	704.56 cm³	42.995 in³
Plastic section modulus (Zx)	908.19 cm³	55.421 in³
Plastic section modulus (Zy)	817.65 cm³	49.896 in³
Radius of gyration (rx)	10.74 cm	4.229 in
Radius of gyration (ry)	9.54 cm	3.757 in