RHS 100x70x9.5 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 100x70 (México) · Caño estructural 100x70 (Argentina)

The RHS 100x70x9.5 steel profile weighs 20.7 kg/m (13.91 lb/ft), has a depth of 100 mm (3.94 in), flange width 70 mm (2.76 in). Cross-sectional area: 2,636.586 mm². Moment of inertia Ix = 303.635 cm⁴, Iy = 170.846 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	70 mm	2.76 in
Thickness (t)	9.5 mm	0.37 in
Fillet radius (r)	19 mm	0.75 in
Weight	20.7 kg/m	13.91 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,636.59 mm²	4.087 in²
Moment of inertia (Ix)	303.63 cm⁴	7.29 in⁴
Moment of inertia (Iy)	170.85 cm⁴	4.10 in⁴
Elastic section modulus (Sx)	60.73 cm³	3.706 in³
Elastic section modulus (Sy)	48.81 cm³	2.979 in³
Plastic section modulus (Zx)	80.14 cm³	4.891 in³
Plastic section modulus (Zy)	62.11 cm³	3.790 in³
Radius of gyration (rx)	3.39 cm	1.336 in
Radius of gyration (ry)	2.55 cm	1.002 in