RHS 280x240x12.7 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 280x240x12.7 steel profile weighs 95.4 kg/m (64.08 lb/ft), has a depth of 280 mm (11.02 in), flange width 240 mm (9.45 in). Cross-sectional area: 12,147.482 mm². Moment of inertia Ix = 13,604.327 cm⁴, Iy = 10,713.601 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)	12.7 mm	0.50 in
Fillet radius (r)	25.4 mm	1.00 in
Weight	95.4 kg/m	64.08 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	12,147.48 mm²	18.829 in²
Moment of inertia (Ix)	13,604.33 cm⁴	326.84 in⁴
Moment of inertia (Iy)	10,713.6 cm⁴	257.39 in⁴
Elastic section modulus (Sx)	971.74 cm³	59.299 in³
Elastic section modulus (Sy)	892.8 cm³	54.482 in³
Plastic section modulus (Zx)	1,169.19 cm³	71.348 in³
Plastic section modulus (Zy)	1,051.86 cm³	64.189 in³
Radius of gyration (rx)	10.58 cm	4.166 in
Radius of gyration (ry)	9.39 cm	3.697 in