RHS 220x130x6.4 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 220x130 cal 3 (México) · Caño estructural 220x130 (Argentina)

The RHS 220x130x6.4 steel profile weighs 33.0 kg/m (22.21 lb/ft), has a depth of 220 mm (8.66 in), flange width 130 mm (5.12 in). Cross-sectional area: 4,210.679 mm². Moment of inertia Ix = 2,722.6 cm⁴, Iy = 1,205.283 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	220 mm	8.66 in
Width (b)	130 mm	5.12 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	33.0 kg/m	22.21 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,210.68 mm²	6.527 in²
Moment of inertia (Ix)	2,722.6 cm⁴	65.41 in⁴
Moment of inertia (Iy)	1,205.28 cm⁴	28.96 in⁴
Elastic section modulus (Sx)	247.51 cm³	15.104 in³
Elastic section modulus (Sy)	185.43 cm³	11.316 in³
Plastic section modulus (Zx)	303.62 cm³	18.528 in³
Plastic section modulus (Zy)	211.25 cm³	12.892 in³
Radius of gyration (rx)	8.04 cm	3.166 in
Radius of gyration (ry)	5.35 cm	2.106 in