RHS 90x50x1.5 Hiasa · Weight & Dimensions

Hiasa, 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 cal 16 (México) · Caño estructural 90x50 (Argentina)

The RHS 90x50x1.5 steel profile weighs 3.2 kg/m (2.14 lb/ft), has a depth of 90 mm (3.54 in), flange width 50 mm (1.97 in). Cross-sectional area: 405.206 mm². Moment of inertia Ix = 44.678 cm⁴, Iy = 18.124 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.5 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	90 mm	3.54 in
Width (b)	50 mm	1.97 in
Thickness (t)	1.5 mm	0.06 in
Fillet radius (r)	3 mm	0.12 in
Weight	3.2 kg/m	2.14 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	405.21 mm²	0.628 in²
Moment of inertia (Ix)	44.68 cm⁴	1.07 in⁴
Moment of inertia (Iy)	18.12 cm⁴	0.44 in⁴
Elastic section modulus (Sx)	9.93 cm³	0.606 in³
Elastic section modulus (Sy)	7.25 cm³	0.442 in³
Plastic section modulus (Zx)	12.06 cm³	0.736 in³
Plastic section modulus (Zy)	8.06 cm³	0.492 in³
Radius of gyration (rx)	3.32 cm	1.307 in
Radius of gyration (ry)	2.11 cm	0.833 in