RHS 70x50x7.1 Açotubo · Weight & Dimensions

Açotubo, cold-formed 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 70x50x7.1 steel profile weighs 10.8 kg/m (7.24 lb/ft), has a depth of 70 mm (2.76 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,372.543 mm². Moment of inertia Ix = 76.431 cm⁴, Iy = 44.371 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	70 mm	2.76 in
Width (b)	50 mm	1.97 in
Thickness (t)	7.1 mm	0.28 in
Fillet radius (r)	14.2 mm	0.56 in
Weight	10.8 kg/m	7.24 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,372.54 mm²	2.127 in²
Moment of inertia (Ix)	76.43 cm⁴	1.84 in⁴
Moment of inertia (Iy)	44.37 cm⁴	1.07 in⁴
Elastic section modulus (Sx)	21.84 cm³	1.333 in³
Elastic section modulus (Sy)	17.75 cm³	1.083 in³
Plastic section modulus (Zx)	29.01 cm³	1.770 in³
Plastic section modulus (Zy)	22.8 cm³	1.391 in³
Radius of gyration (rx)	2.36 cm	0.929 in
Radius of gyration (ry)	1.8 cm	0.708 in