RHS 110x70x8.8 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 110x70 (México) · Caño estructural 110x70 (Argentina)

The RHS 110x70x8.8 steel profile weighs 20.9 kg/m (14.02 lb/ft), has a depth of 110 mm (4.33 in), flange width 70 mm (2.76 in). Cross-sectional area: 2,658.815 mm². Moment of inertia Ix = 375.323 cm⁴, Iy = 181.597 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)	8.8 mm	0.35 in
Fillet radius (r)	17.6 mm	0.69 in
Weight	20.9 kg/m	14.02 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,658.81 mm²	4.121 in²
Moment of inertia (Ix)	375.32 cm⁴	9.02 in⁴
Moment of inertia (Iy)	181.6 cm⁴	4.36 in⁴
Elastic section modulus (Sx)	68.24 cm³	4.164 in³
Elastic section modulus (Sy)	51.88 cm³	3.166 in³
Plastic section modulus (Zx)	89.27 cm³	5.447 in³
Plastic section modulus (Zy)	64.67 cm³	3.947 in³
Radius of gyration (rx)	3.76 cm	1.479 in
Radius of gyration (ry)	2.61 cm	1.029 in