RHS 160x90x8.2 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 160x90 (México) · Caño estructural 160x90 (Argentina)

The RHS 160x90x8.2 steel profile weighs 28.7 kg/m (19.29 lb/ft), has a depth of 160 mm (6.30 in), flange width 90 mm (3.54 in). Cross-sectional area: 3,657.882 mm². Moment of inertia Ix = 1,149.329 cm⁴, Iy = 462.306 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	160 mm	6.30 in
Width (b)	90 mm	3.54 in
Thickness (t)	8.2 mm	0.32 in
Fillet radius (r)	16.4 mm	0.65 in
Weight	28.7 kg/m	19.29 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,657.88 mm²	5.670 in²
Moment of inertia (Ix)	1,149.33 cm⁴	27.61 in⁴
Moment of inertia (Iy)	462.31 cm⁴	11.11 in⁴
Elastic section modulus (Sx)	143.67 cm³	8.767 in³
Elastic section modulus (Sy)	102.73 cm³	6.269 in³
Plastic section modulus (Zx)	182.99 cm³	11.167 in³
Plastic section modulus (Zy)	122.01 cm³	7.445 in³
Radius of gyration (rx)	5.61 cm	2.207 in
Radius of gyration (ry)	3.56 cm	1.400 in