RHS 220x180x12.7 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 220x180 (México) · Caño estructural 220x180 (Argentina)

The RHS 220x180x12.7 steel profile weighs 71.4 kg/m (48.00 lb/ft), has a depth of 220 mm (8.66 in), flange width 180 mm (7.09 in). Cross-sectional area: 9,099.482 mm². Moment of inertia Ix = 5,997.436 cm⁴, Iy = 4,381.528 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)	12.7 mm	0.50 in
Fillet radius (r)	25.4 mm	1.00 in
Weight	71.4 kg/m	48.00 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,099.48 mm²	14.104 in²
Moment of inertia (Ix)	5,997.44 cm⁴	144.09 in⁴
Moment of inertia (Iy)	4,381.53 cm⁴	105.27 in⁴
Elastic section modulus (Sx)	545.22 cm³	33.272 in³
Elastic section modulus (Sy)	486.84 cm³	29.709 in³
Plastic section modulus (Zx)	669.66 cm³	40.865 in³
Plastic section modulus (Zy)	582.82 cm³	35.566 in³
Radius of gyration (rx)	8.12 cm	3.196 in
Radius of gyration (ry)	6.94 cm	2.732 in