RHS 80x50x5 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 cal 6 (México) · Caño estructural 80x50 (Argentina)

The RHS 80x50x5 steel profile weighs 8.9 kg/m (5.99 lb/ft), has a depth of 80 mm (3.15 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,135.619 mm². Moment of inertia Ix = 89.192 cm⁴, Iy = 42.288 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5 mm ≈ 6 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 mm	0.20 in
Fillet radius (r)	10 mm	0.39 in
Weight	8.9 kg/m	5.99 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,135.62 mm²	1.760 in²
Moment of inertia (Ix)	89.19 cm⁴	2.14 in⁴
Moment of inertia (Iy)	42.29 cm⁴	1.02 in⁴
Elastic section modulus (Sx)	22.3 cm³	1.361 in³
Elastic section modulus (Sy)	16.92 cm³	1.032 in³
Plastic section modulus (Zx)	28.49 cm³	1.738 in³
Plastic section modulus (Zy)	20.45 cm³	1.248 in³
Radius of gyration (rx)	2.8 cm	1.103 in
Radius of gyration (ry)	1.93 cm	0.760 in