RHS 280x240x8.2 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 280x240x8.2 steel profile weighs 63.5 kg/m (42.65 lb/ft), has a depth of 280 mm (11.02 in), flange width 240 mm (9.45 in). Cross-sectional area: 8,085.882 mm². Moment of inertia Ix = 9,442.893 cm⁴, Iy = 7,455.881 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)	8.2 mm	0.32 in
Fillet radius (r)	16.4 mm	0.65 in
Weight	63.5 kg/m	42.65 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,085.88 mm²	12.533 in²
Moment of inertia (Ix)	9,442.89 cm⁴	226.87 in⁴
Moment of inertia (Iy)	7,455.88 cm⁴	179.13 in⁴
Elastic section modulus (Sx)	674.49 cm³	41.160 in³
Elastic section modulus (Sy)	621.32 cm³	37.916 in³
Plastic section modulus (Zx)	795.82 cm³	48.564 in³
Plastic section modulus (Zy)	716.69 cm³	43.735 in³
Radius of gyration (rx)	10.81 cm	4.255 in
Radius of gyration (ry)	9.6 cm	3.781 in