RHS 90x50x5.49 Acindar · Weight & Dimensions

Acindar, 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 90x50 (México) · Caño estructural 90x50 (Argentina)

The RHS 90x50x5.49 steel profile weighs 10.5 kg/m (7.06 lb/ft), has a depth of 90 mm (3.54 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,338.928 mm². Moment of inertia Ix = 128.306 cm⁴, Iy = 50.185 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5.49 mm ≈ 4 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	90 mm	3.54 in
Width (b)	50 mm	1.97 in
Thickness (t)	5.5 mm	0.22 in
Fillet radius (r)	11.0 mm	0.43 in
Weight	10.5 kg/m	7.06 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,338.93 mm²	2.075 in²
Moment of inertia (Ix)	128.31 cm⁴	3.08 in⁴
Moment of inertia (Iy)	50.19 cm⁴	1.21 in⁴
Elastic section modulus (Sx)	28.51 cm³	1.740 in³
Elastic section modulus (Sy)	20.07 cm³	1.225 in³
Plastic section modulus (Zx)	36.92 cm³	2.253 in³
Plastic section modulus (Zy)	24.31 cm³	1.483 in³
Radius of gyration (rx)	3.1 cm	1.219 in
Radius of gyration (ry)	1.94 cm	0.762 in