RHS 90x60x6.4 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 90x60 cal 3 (México) · Caño estructural 90x60 (Argentina)

The RHS 90x60x6.4 steel profile weighs 13.0 kg/m (8.71 lb/ft), has a depth of 90 mm (3.54 in), flange width 60 mm (2.36 in). Cross-sectional area: 1,650.679 mm². Moment of inertia Ix = 163.334 cm⁴, Iy = 85.643 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.4 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	90 mm	3.54 in
Width (b)	60 mm	2.36 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	13.0 kg/m	8.71 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,650.68 mm²	2.559 in²
Moment of inertia (Ix)	163.33 cm⁴	3.92 in⁴
Moment of inertia (Iy)	85.64 cm⁴	2.06 in⁴
Elastic section modulus (Sx)	36.3 cm³	2.215 in³
Elastic section modulus (Sy)	28.55 cm³	1.742 in³
Plastic section modulus (Zx)	46.55 cm³	2.841 in³
Plastic section modulus (Zy)	34.97 cm³	2.134 in³
Radius of gyration (rx)	3.15 cm	1.238 in
Radius of gyration (ry)	2.28 cm	0.897 in