RHS 70x60x3.6 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 70x60 (México) · Caño estructural 70x60 (Argentina)

The RHS 70x60x3.6 steel profile weighs 6.7 kg/m (4.49 lb/ft), has a depth of 70 mm (2.76 in), flange width 60 mm (2.36 in). Cross-sectional area: 850.785 mm². Moment of inertia Ix = 58.596 cm⁴, Iy = 46.101 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)	60 mm	2.36 in
Thickness (t)	3.6 mm	0.14 in
Fillet radius (r)	7.2 mm	0.28 in
Weight	6.7 kg/m	4.49 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	850.79 mm²	1.319 in²
Moment of inertia (Ix)	58.6 cm⁴	1.41 in⁴
Moment of inertia (Iy)	46.1 cm⁴	1.11 in⁴
Elastic section modulus (Sx)	16.74 cm³	1.022 in³
Elastic section modulus (Sy)	15.37 cm³	0.938 in³
Plastic section modulus (Zx)	20.3 cm³	1.239 in³
Plastic section modulus (Zy)	18.25 cm³	1.114 in³
Radius of gyration (rx)	2.62 cm	1.033 in
Radius of gyration (ry)	2.33 cm	0.916 in