RHS 350x220x11.1 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 350x220 (México) · Caño estructural 350x220 (Argentina)

The RHS 350x220x11.1 steel profile weighs 93.0 kg/m (62.48 lb/ft), has a depth of 350 mm (13.78 in), flange width 220 mm (8.66 in). Cross-sectional area: 11,843.867 mm². Moment of inertia Ix = 19,596.524 cm⁴, Iy = 9,547.444 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	350 mm	13.78 in
Width (b)	220 mm	8.66 in
Thickness (t)	11.1 mm	0.44 in
Fillet radius (r)	22.2 mm	0.87 in
Weight	93.0 kg/m	62.48 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	11,843.87 mm²	18.358 in²
Moment of inertia (Ix)	19,596.52 cm⁴	470.81 in⁴
Moment of inertia (Iy)	9,547.44 cm⁴	229.38 in⁴
Elastic section modulus (Sx)	1,119.8 cm³	68.335 in³
Elastic section modulus (Sy)	867.95 cm³	52.966 in³
Plastic section modulus (Zx)	1,369.09 cm³	83.547 in³
Plastic section modulus (Zy)	994.48 cm³	60.687 in³
Radius of gyration (rx)	12.86 cm	5.064 in
Radius of gyration (ry)	8.98 cm	3.535 in