RHS 300x220x8.2 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 300x220 (México) · Caño estructural 300x220 (Argentina)

The RHS 300x220x8.2 steel profile weighs 63.5 kg/m (42.65 lb/ft), has a depth of 300 mm (11.81 in), flange width 220 mm (8.66 in). Cross-sectional area: 8,085.882 mm². Moment of inertia Ix = 10,418.085 cm⁴, Iy = 6,470.299 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 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	63.5 kg/m	42.65 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,085.88 mm²	12.533 in²
Moment of inertia (Ix)	10,418.09 cm⁴	250.29 in⁴
Moment of inertia (Iy)	6,470.3 cm⁴	155.45 in⁴
Elastic section modulus (Sx)	694.54 cm³	42.384 in³
Elastic section modulus (Sy)	588.21 cm³	35.895 in³
Plastic section modulus (Zx)	830.46 cm³	50.678 in³
Plastic section modulus (Zy)	672.2 cm³	41.021 in³
Radius of gyration (rx)	11.35 cm	4.469 in
Radius of gyration (ry)	8.95 cm	3.522 in