RHS 80x50x5.6 V&M do Brasil · Weight & Dimensions

V&M do Brasil, hot-rolled 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 80x50 (México) · Caño estructural 80x50 (Argentina)

The RHS 80x50x5.6 steel profile weighs 9.8 kg/m (6.59 lb/ft), has a depth of 80 mm (3.15 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,249.801 mm². Moment of inertia Ix = 95.809 cm⁴, Iy = 45.236 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5.6 mm ≈ 4 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	80 mm	3.15 in
Width (b)	50 mm	1.97 in
Thickness (t)	5.6 mm	0.22 in
Fillet radius (r)	11.2 mm	0.44 in
Weight	9.8 kg/m	6.59 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,249.8 mm²	1.937 in²
Moment of inertia (Ix)	95.81 cm⁴	2.30 in⁴
Moment of inertia (Iy)	45.24 cm⁴	1.09 in⁴
Elastic section modulus (Sx)	23.95 cm³	1.462 in³
Elastic section modulus (Sy)	18.09 cm³	1.104 in³
Plastic section modulus (Zx)	30.94 cm³	1.888 in³
Plastic section modulus (Zy)	22.17 cm³	1.353 in³
Radius of gyration (rx)	2.77 cm	1.090 in
Radius of gyration (ry)	1.9 cm	0.749 in