RHS 130x80x4.8 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 130x80 cal 6 (México) · Caño estructural 130x80 (Argentina)

The RHS 130x80x4.8 steel profile weighs 14.6 kg/m (9.84 lb/ft), has a depth of 130 mm (5.12 in), flange width 80 mm (3.15 in). Cross-sectional area: 1,864.507 mm². Moment of inertia Ix = 416.37 cm⁴, Iy = 195.532 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.8 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	130 mm	5.12 in
Width (b)	80 mm	3.15 in
Thickness (t)	4.8 mm	0.19 in
Fillet radius (r)	9.6 mm	0.38 in
Weight	14.6 kg/m	9.84 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,864.51 mm²	2.890 in²
Moment of inertia (Ix)	416.37 cm⁴	10.00 in⁴
Moment of inertia (Iy)	195.53 cm⁴	4.70 in⁴
Elastic section modulus (Sx)	64.06 cm³	3.909 in³
Elastic section modulus (Sy)	48.88 cm³	2.983 in³
Plastic section modulus (Zx)	79.06 cm³	4.825 in³
Plastic section modulus (Zy)	56.5 cm³	3.448 in³
Radius of gyration (rx)	4.73 cm	1.860 in
Radius of gyration (ry)	3.24 cm	1.275 in