RHS 300x220x8.8 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 300x220x8.8 steel profile weighs 67.8 kg/m (45.60 lb/ft), has a depth of 300 mm (11.81 in), flange width 220 mm (8.66 in). Cross-sectional area: 8,642.815 mm². Moment of inertia Ix = 11,075.291 cm⁴, Iy = 6,873.444 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)	8.8 mm	0.35 in
Fillet radius (r)	17.6 mm	0.69 in
Weight	67.8 kg/m	45.60 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,642.81 mm²	13.396 in²
Moment of inertia (Ix)	11,075.29 cm⁴	266.08 in⁴
Moment of inertia (Iy)	6,873.44 cm⁴	165.13 in⁴
Elastic section modulus (Sx)	738.35 cm³	45.057 in³
Elastic section modulus (Sy)	624.86 cm³	38.131 in³
Plastic section modulus (Zx)	885.08 cm³	54.011 in³
Plastic section modulus (Zy)	716.21 cm³	43.706 in³
Radius of gyration (rx)	11.32 cm	4.457 in
Radius of gyration (ry)	8.92 cm	3.511 in