RHS 330x210x8.8 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 330x210 (México) · Caño estructural 330x210 (Argentina)

The RHS 330x210x8.8 steel profile weighs 70.6 kg/m (47.45 lb/ft), has a depth of 330 mm (12.99 in), flange width 210 mm (8.27 in). Cross-sectional area: 8,994.815 mm². Moment of inertia Ix = 13,474.89 cm⁴, Iy = 6,713.39 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	330 mm	12.99 in
Width (b)	210 mm	8.27 in
Thickness (t)	8.8 mm	0.35 in
Fillet radius (r)	17.6 mm	0.69 in
Weight	70.6 kg/m	47.45 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	8,994.81 mm²	13.942 in²
Moment of inertia (Ix)	13,474.89 cm⁴	323.73 in⁴
Moment of inertia (Iy)	6,713.39 cm⁴	161.29 in⁴
Elastic section modulus (Sx)	816.66 cm³	49.836 in³
Elastic section modulus (Sy)	639.37 cm³	39.017 in³
Plastic section modulus (Zx)	990.41 cm³	60.439 in³
Plastic section modulus (Zy)	726.55 cm³	44.337 in³
Radius of gyration (rx)	12.24 cm	4.819 in
Radius of gyration (ry)	8.64 cm	3.401 in