RHS 140x90x5.6 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 140x90 (México) · Caño estructural 140x90 (Argentina)

The RHS 140x90x5.6 steel profile weighs 18.6 kg/m (12.50 lb/ft), has a depth of 140 mm (5.51 in), flange width 90 mm (3.54 in). Cross-sectional area: 2,369.801 mm². Moment of inertia Ix = 616.519 cm⁴, Iy = 309.739 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5.6 mm ≈ 4 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	140 mm	5.51 in
Width (b)	90 mm	3.54 in
Thickness (t)	5.6 mm	0.22 in
Fillet radius (r)	11.2 mm	0.44 in
Weight	18.6 kg/m	12.50 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,369.8 mm²	3.673 in²
Moment of inertia (Ix)	616.52 cm⁴	14.81 in⁴
Moment of inertia (Iy)	309.74 cm⁴	7.44 in⁴
Elastic section modulus (Sx)	88.07 cm³	5.375 in³
Elastic section modulus (Sy)	68.83 cm³	4.200 in³
Plastic section modulus (Zx)	108.62 cm³	6.628 in³
Plastic section modulus (Zy)	80.01 cm³	4.882 in³
Radius of gyration (rx)	5.1 cm	2.008 in
Radius of gyration (ry)	3.62 cm	1.423 in