RHS 110x70x4.4 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 110x70 (México) · Caño estructural 110x70 (Argentina)

The RHS 110x70x4.4 steel profile weighs 11.4 kg/m (7.69 lb/ft), has a depth of 110 mm (4.33 in), flange width 70 mm (2.76 in). Cross-sectional area: 1,456.704 mm². Moment of inertia Ix = 233.213 cm⁴, Iy = 115.294 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	110 mm	4.33 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	11.4 kg/m	7.69 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,456.7 mm²	2.258 in²
Moment of inertia (Ix)	233.21 cm⁴	5.60 in⁴
Moment of inertia (Iy)	115.29 cm⁴	2.77 in⁴
Elastic section modulus (Sx)	42.4 cm³	2.588 in³
Elastic section modulus (Sy)	32.94 cm³	2.010 in³
Plastic section modulus (Zx)	52.36 cm³	3.195 in³
Plastic section modulus (Zy)	38.29 cm³	2.336 in³
Radius of gyration (rx)	4 cm	1.575 in
Radius of gyration (ry)	2.81 cm	1.108 in