RHS 220x180x8.2 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 220x180 (México) · Caño estructural 220x180 (Argentina)

The RHS 220x180x8.2 steel profile weighs 48.0 kg/m (32.28 lb/ft), has a depth of 220 mm (8.66 in), flange width 180 mm (7.09 in). Cross-sectional area: 6,117.882 mm². Moment of inertia Ix = 4,262.122 cm⁴, Iy = 3,127.335 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)	8.2 mm	0.32 in
Fillet radius (r)	16.4 mm	0.65 in
Weight	48.0 kg/m	32.28 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,117.88 mm²	9.483 in²
Moment of inertia (Ix)	4,262.12 cm⁴	102.40 in⁴
Moment of inertia (Iy)	3,127.33 cm⁴	75.13 in⁴
Elastic section modulus (Sx)	387.47 cm³	23.645 in³
Elastic section modulus (Sy)	347.48 cm³	21.205 in³
Plastic section modulus (Zx)	463.79 cm³	28.303 in³
Plastic section modulus (Zy)	404.35 cm³	24.675 in³
Radius of gyration (rx)	8.35 cm	3.286 in
Radius of gyration (ry)	7.15 cm	2.815 in