RHS 350x220x8.2 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 350x220 (México) · Caño estructural 350x220 (Argentina)

The RHS 350x220x8.2 steel profile weighs 69.9 kg/m (46.98 lb/ft), has a depth of 350 mm (13.78 in), flange width 220 mm (8.66 in). Cross-sectional area: 8,905.882 mm². Moment of inertia Ix = 15,092.831 cm⁴, Iy = 7,390.373 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)	8.2 mm	0.32 in
Fillet radius (r)	16.4 mm	0.65 in
Weight	69.9 kg/m	46.98 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,905.88 mm²	13.804 in²
Moment of inertia (Ix)	15,092.83 cm⁴	362.61 in⁴
Moment of inertia (Iy)	7,390.37 cm⁴	177.55 in⁴
Elastic section modulus (Sx)	862.45 cm³	52.630 in³
Elastic section modulus (Sy)	671.85 cm³	40.999 in³
Plastic section modulus (Zx)	1,042.86 cm³	63.639 in³
Plastic section modulus (Zy)	759.04 cm³	46.320 in³
Radius of gyration (rx)	13.02 cm	5.125 in
Radius of gyration (ry)	9.11 cm	3.586 in