RHS 330x190x8.8 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 330x190 (México) · Caño estructural 330x190 (Argentina)

The RHS 330x190x8.8 steel profile weighs 67.8 kg/m (45.60 lb/ft), has a depth of 330 mm (12.99 in), flange width 190 mm (7.48 in). Cross-sectional area: 8,642.815 mm². Moment of inertia Ix = 12,566.772 cm⁴, Iy = 5,349.059 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	330 mm	12.99 in
Width (b)	190 mm	7.48 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)	12,566.77 cm⁴	301.92 in⁴
Moment of inertia (Iy)	5,349.06 cm⁴	128.51 in⁴
Elastic section modulus (Sx)	761.62 cm³	46.477 in³
Elastic section modulus (Sy)	563.06 cm³	34.360 in³
Plastic section modulus (Zx)	933.88 cm³	56.989 in³
Plastic section modulus (Zy)	638.36 cm³	38.956 in³
Radius of gyration (rx)	12.06 cm	4.747 in
Radius of gyration (ry)	7.87 cm	3.097 in