RHS 130x70x4.4 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 (México) · Caño estructural 130x70 (Argentina)

The RHS 130x70x4.4 steel profile weighs 12.8 kg/m (8.62 lb/ft), has a depth of 130 mm (5.12 in), flange width 70 mm (2.76 in). Cross-sectional area: 1,632.704 mm². Moment of inertia Ix = 353.077 cm⁴, Iy = 134.257 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.4 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	130 mm	5.12 in
Width (b)	70 mm	2.76 in
Thickness (t)	4.4 mm	0.17 in
Fillet radius (r)	8.8 mm	0.35 in
Weight	12.8 kg/m	8.62 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,632.7 mm²	2.531 in²
Moment of inertia (Ix)	353.08 cm⁴	8.48 in⁴
Moment of inertia (Iy)	134.26 cm⁴	3.23 in⁴
Elastic section modulus (Sx)	54.32 cm³	3.315 in³
Elastic section modulus (Sy)	38.36 cm³	2.341 in³
Plastic section modulus (Zx)	67.8 cm³	4.138 in³
Plastic section modulus (Zy)	44.06 cm³	2.689 in³
Radius of gyration (rx)	4.65 cm	1.831 in
Radius of gyration (ry)	2.87 cm	1.129 in