RHS 220x130x8.8 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 220x130 (México) · Caño estructural 220x130 (Argentina)

The RHS 220x130x8.8 steel profile weighs 44.4 kg/m (29.81 lb/ft), has a depth of 220 mm (8.66 in), flange width 130 mm (5.12 in). Cross-sectional area: 5,650.815 mm². Moment of inertia Ix = 3,535.026 cm⁴, Iy = 1,552.825 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	220 mm	8.66 in
Width (b)	130 mm	5.12 in
Thickness (t)	8.8 mm	0.35 in
Fillet radius (r)	17.6 mm	0.69 in
Weight	44.4 kg/m	29.81 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,650.81 mm²	8.759 in²
Moment of inertia (Ix)	3,535.03 cm⁴	84.93 in⁴
Moment of inertia (Iy)	1,552.82 cm⁴	37.31 in⁴
Elastic section modulus (Sx)	321.37 cm³	19.611 in³
Elastic section modulus (Sy)	238.9 cm³	14.578 in³
Plastic section modulus (Zx)	400.26 cm³	24.425 in³
Plastic section modulus (Zy)	277.6 cm³	16.940 in³
Radius of gyration (rx)	7.91 cm	3.114 in
Radius of gyration (ry)	5.24 cm	2.064 in