RHS 130x70x6.4 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 130x70 cal 3 (México) · Caño estructural 130x70 (Argentina)

The RHS 130x70x6.4 steel profile weighs 18.0 kg/m (12.08 lb/ft), has a depth of 130 mm (5.12 in), flange width 70 mm (2.76 in). Cross-sectional area: 2,290.679 mm². Moment of inertia Ix = 471.334 cm⁴, Iy = 176.792 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.4 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	130 mm	5.12 in
Width (b)	70 mm	2.76 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	18.0 kg/m	12.08 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,290.68 mm²	3.551 in²
Moment of inertia (Ix)	471.33 cm⁴	11.32 in⁴
Moment of inertia (Iy)	176.79 cm⁴	4.25 in⁴
Elastic section modulus (Sx)	72.51 cm³	4.425 in³
Elastic section modulus (Sy)	50.51 cm³	3.082 in³
Plastic section modulus (Zx)	92.6 cm³	5.651 in³
Plastic section modulus (Zy)	59.82 cm³	3.650 in³
Radius of gyration (rx)	4.54 cm	1.786 in
Radius of gyration (ry)	2.78 cm	1.094 in