RHS 170x120x7.1 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 170x120 (México) · Caño estructural 170x120 (Argentina)

The RHS 170x120x7.1 steel profile weighs 29.7 kg/m (19.97 lb/ft), has a depth of 170 mm (6.69 in), flange width 120 mm (4.72 in). Cross-sectional area: 3,786.543 mm². Moment of inertia Ix = 1,487.872 cm⁴, Iy = 865.782 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	170 mm	6.69 in
Width (b)	120 mm	4.72 in
Thickness (t)	7.1 mm	0.28 in
Fillet radius (r)	14.2 mm	0.56 in
Weight	29.7 kg/m	19.97 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,786.54 mm²	5.869 in²
Moment of inertia (Ix)	1,487.87 cm⁴	35.75 in⁴
Moment of inertia (Iy)	865.78 cm⁴	20.80 in⁴
Elastic section modulus (Sx)	175.04 cm³	10.682 in³
Elastic section modulus (Sy)	144.3 cm³	8.806 in³
Plastic section modulus (Zx)	214.1 cm³	13.065 in³
Plastic section modulus (Zy)	168.39 cm³	10.276 in³
Radius of gyration (rx)	6.27 cm	2.468 in
Radius of gyration (ry)	4.78 cm	1.883 in