RHS 170x120x8.8 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 170x120 (México) · Caño estructural 170x120 (Argentina)

The RHS 170x120x8.8 steel profile weighs 36.1 kg/m (24.24 lb/ft), has a depth of 170 mm (6.69 in), flange width 120 mm (4.72 in). Cross-sectional area: 4,594.815 mm². Moment of inertia Ix = 1,754.144 cm⁴, Iy = 1,016.599 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)	8.8 mm	0.35 in
Fillet radius (r)	17.6 mm	0.69 in
Weight	36.1 kg/m	24.24 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,594.81 mm²	7.122 in²
Moment of inertia (Ix)	1,754.14 cm⁴	42.14 in⁴
Moment of inertia (Iy)	1,016.6 cm⁴	24.42 in⁴
Elastic section modulus (Sx)	206.37 cm³	12.594 in³
Elastic section modulus (Sy)	169.43 cm³	10.339 in³
Plastic section modulus (Zx)	255.8 cm³	15.610 in³
Plastic section modulus (Zy)	200.86 cm³	12.257 in³
Radius of gyration (rx)	6.18 cm	2.433 in
Radius of gyration (ry)	4.7 cm	1.852 in