RHS 80x50x3 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 80x50 cal 11 (México) · Caño estructural 80x50 (Argentina)

The RHS 80x50x3 steel profile weighs 5.7 kg/m (3.80 lb/ft), has a depth of 80 mm (3.15 in), flange width 50 mm (1.97 in). Cross-sectional area: 720.823 mm². Moment of inertia Ix = 61.149 cm⁴, Iy = 29.421 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	80 mm	3.15 in
Width (b)	50 mm	1.97 in
Thickness (t)	3 mm	0.12 in
Fillet radius (r)	6 mm	0.24 in
Weight	5.7 kg/m	3.80 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	720.82 mm²	1.117 in²
Moment of inertia (Ix)	61.15 cm⁴	1.47 in⁴
Moment of inertia (Iy)	29.42 cm⁴	0.71 in⁴
Elastic section modulus (Sx)	15.29 cm³	0.933 in³
Elastic section modulus (Sy)	11.77 cm³	0.718 in³
Plastic section modulus (Zx)	18.85 cm³	1.150 in³
Plastic section modulus (Zy)	13.62 cm³	0.831 in³
Radius of gyration (rx)	2.91 cm	1.147 in
Radius of gyration (ry)	2.02 cm	0.795 in