RHS 110x70x7.1 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 110x70x7.1 steel profile weighs 17.5 kg/m (11.73 lb/ft), has a depth of 110 mm (4.33 in), flange width 70 mm (2.76 in). Cross-sectional area: 2,224.543 mm². Moment of inertia Ix = 330.253 cm⁴, Iy = 161.06 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	110 mm	4.33 in
Width (b)	70 mm	2.76 in
Thickness (t)	7.1 mm	0.28 in
Fillet radius (r)	14.2 mm	0.56 in
Weight	17.5 kg/m	11.73 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,224.54 mm²	3.448 in²
Moment of inertia (Ix)	330.25 cm⁴	7.93 in⁴
Moment of inertia (Iy)	161.06 cm⁴	3.87 in⁴
Elastic section modulus (Sx)	60.05 cm³	3.664 in³
Elastic section modulus (Sy)	46.02 cm³	2.808 in³
Plastic section modulus (Zx)	76.76 cm³	4.684 in³
Plastic section modulus (Zy)	55.81 cm³	3.406 in³
Radius of gyration (rx)	3.85 cm	1.517 in
Radius of gyration (ry)	2.69 cm	1.059 in