RHS 70x50x3.6 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 70x50 (México) · Caño estructural 70x50 (Argentina)

The RHS 70x50x3.6 steel profile weighs 6.1 kg/m (4.11 lb/ft), has a depth of 70 mm (2.76 in), flange width 50 mm (1.97 in). Cross-sectional area: 778.785 mm². Moment of inertia Ix = 50.652 cm⁴, Iy = 29.915 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.6 mm ≈ 9 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	70 mm	2.76 in
Width (b)	50 mm	1.97 in
Thickness (t)	3.6 mm	0.14 in
Fillet radius (r)	7.2 mm	0.28 in
Weight	6.1 kg/m	4.11 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	778.79 mm²	1.207 in²
Moment of inertia (Ix)	50.65 cm⁴	1.22 in⁴
Moment of inertia (Iy)	29.92 cm⁴	0.72 in⁴
Elastic section modulus (Sx)	14.47 cm³	0.883 in³
Elastic section modulus (Sy)	11.97 cm³	0.730 in³
Plastic section modulus (Zx)	17.91 cm³	1.093 in³
Plastic section modulus (Zy)	14.18 cm³	0.865 in³
Radius of gyration (rx)	2.55 cm	1.004 in
Radius of gyration (ry)	1.96 cm	0.772 in