RHS 66x33x2.9 Tata Steel · Weight & Dimensions

Tata Steel, 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 66x33 cal 11 (México) · Caño estructural 66x33 (Argentina)

The RHS 66x33x2.9 steel profile weighs 4.1 kg/m (2.74 lb/ft), has a depth of 66 mm (2.60 in), flange width 33 mm (1.30 in). Cross-sectional area: 518.902 mm². Moment of inertia Ix = 27.331 cm⁴, Iy = 9.12 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.9 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	66 mm	2.60 in
Width (b)	33 mm	1.30 in
Thickness (t)	2.9 mm	0.11 in
Fillet radius (r)	5.8 mm	0.23 in
Weight	4.1 kg/m	2.74 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	518.9 mm²	0.804 in²
Moment of inertia (Ix)	27.33 cm⁴	0.66 in⁴
Moment of inertia (Iy)	9.12 cm⁴	0.22 in⁴
Elastic section modulus (Sx)	8.28 cm³	0.505 in³
Elastic section modulus (Sy)	5.53 cm³	0.337 in³
Plastic section modulus (Zx)	10.59 cm³	0.646 in³
Plastic section modulus (Zy)	6.49 cm³	0.396 in³
Radius of gyration (rx)	2.29 cm	0.904 in
Radius of gyration (ry)	1.33 cm	0.522 in