RHS 160x90x8.8 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 160x90 (México) · Caño estructural 160x90 (Argentina)

The RHS 160x90x8.8 steel profile weighs 30.5 kg/m (20.52 lb/ft), has a depth of 160 mm (6.30 in), flange width 90 mm (3.54 in). Cross-sectional area: 3,890.815 mm². Moment of inertia Ix = 1,207.574 cm⁴, Iy = 484.327 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)	8.8 mm	0.35 in
Fillet radius (r)	17.6 mm	0.69 in
Weight	30.5 kg/m	20.52 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,890.81 mm²	6.031 in²
Moment of inertia (Ix)	1,207.57 cm⁴	29.01 in⁴
Moment of inertia (Iy)	484.33 cm⁴	11.64 in⁴
Elastic section modulus (Sx)	150.95 cm³	9.211 in³
Elastic section modulus (Sy)	107.63 cm³	6.568 in³
Plastic section modulus (Zx)	193.35 cm³	11.799 in³
Plastic section modulus (Zy)	128.75 cm³	7.857 in³
Radius of gyration (rx)	5.57 cm	2.193 in
Radius of gyration (ry)	3.53 cm	1.389 in