RHS 220x180x11.1 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 220x180 (México) · Caño estructural 220x180 (Argentina)

The RHS 220x180x11.1 steel profile weighs 63.4 kg/m (42.57 lb/ft), has a depth of 220 mm (8.66 in), flange width 180 mm (7.09 in). Cross-sectional area: 8,069.867 mm². Moment of inertia Ix = 5,426.209 cm⁴, Iy = 3,970.242 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	220 mm	8.66 in
Width (b)	180 mm	7.09 in
Thickness (t)	11.1 mm	0.44 in
Fillet radius (r)	22.2 mm	0.87 in
Weight	63.4 kg/m	42.57 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,069.87 mm²	12.508 in²
Moment of inertia (Ix)	5,426.21 cm⁴	130.36 in⁴
Moment of inertia (Iy)	3,970.24 cm⁴	95.39 in⁴
Elastic section modulus (Sx)	493.29 cm³	30.103 in³
Elastic section modulus (Sy)	441.14 cm³	26.920 in³
Plastic section modulus (Zx)	600.28 cm³	36.632 in³
Plastic section modulus (Zy)	522.76 cm³	31.901 in³
Radius of gyration (rx)	8.2 cm	3.228 in
Radius of gyration (ry)	7.01 cm	2.761 in