RHS 70x50x3 Tata Steel Hybox · Weight & Dimensions

Tata Steel Hybox · 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 70x50 cal 11 (México) · Caño estructural 70x50 (Argentina)

The RHS 70x50x3 steel profile weighs 5.2 kg/m (3.49 lb/ft), has a depth of 70 mm (2.76 in), flange width 50 mm (1.97 in). Cross-sectional area: 660.823 mm². Moment of inertia Ix = 44.051 cm⁴, Iy = 26.103 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3 mm ≈ 11 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	70 mm	2.76 in
Width (b)	50 mm	1.97 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	6 mm	0.24 in
Weight	5.2 kg/m	3.49 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	660.82 mm²	1.024 in²
Moment of inertia (Ix)	44.05 cm⁴	1.06 in⁴
Moment of inertia (Iy)	26.1 cm⁴	0.63 in⁴
Elastic section modulus (Sx)	12.59 cm³	0.768 in³
Elastic section modulus (Sy)	10.44 cm³	0.637 in³
Plastic section modulus (Zx)	15.4 cm³	0.940 in³
Plastic section modulus (Zy)	12.21 cm³	0.745 in³
Radius of gyration (rx)	2.58 cm	1.016 in
Radius of gyration (ry)	1.99 cm	0.782 in