RHS 130x100x4.8 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 130x100 cal 6 (México) · Caño estructural 130x100 (Argentina)

The RHS 130x100x4.8 steel profile weighs 16.1 kg/m (10.85 lb/ft), has a depth of 130 mm (5.12 in), flange width 100 mm (3.94 in). Cross-sectional area: 2,056.507 mm². Moment of inertia Ix = 491.647 cm⁴, Iy = 327.817 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)	100 mm	3.94 in
Thickness (t)	4.8 mm	0.19 in
Fillet radius (r)	9.6 mm	0.38 in
Weight	16.1 kg/m	10.85 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,056.51 mm²	3.188 in²
Moment of inertia (Ix)	491.65 cm⁴	11.81 in⁴
Moment of inertia (Iy)	327.82 cm⁴	7.88 in⁴
Elastic section modulus (Sx)	75.64 cm³	4.616 in³
Elastic section modulus (Sy)	65.56 cm³	4.001 in³
Plastic section modulus (Zx)	91.08 cm³	5.558 in³
Plastic section modulus (Zy)	76.1 cm³	4.644 in³
Radius of gyration (rx)	4.89 cm	1.925 in
Radius of gyration (ry)	3.99 cm	1.572 in