RHS 90x30x2 · Weight & Dimensions

BR — 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 90x30 cal 15 (México) · Caño estructural 90x30 (Argentina)

The RHS 90x30x2 steel profile weighs 3.5 kg/m (2.33 lb/ft), has a depth of 90 mm (3.54 in), flange width 30 mm (1.18 in). Cross-sectional area: 464 mm². Moment of inertia Ix = 44.44 cm⁴, Iy = 7.65 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	90 mm	3.54 in
Width (b)	30 mm	1.18 in
Thickness (t)	2 mm	0.08 in
Fillet radius (r)	4 mm	0.16 in
Weight	3.5 kg/m	2.33 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	464 mm²	0.719 in²
Moment of inertia (Ix)	44.44 cm⁴	1.07 in⁴
Moment of inertia (Iy)	7.65 cm⁴	0.18 in⁴
Elastic section modulus (Sx)	9.88 cm³	0.603 in³
Elastic section modulus (Sy)	5.1 cm³	0.311 in³
Plastic section modulus (Zx)	12.68 cm³	0.774 in³
Plastic section modulus (Zy)	5.72 cm³	0.349 in³
Radius of gyration (rx)	3.09 cm	1.217 in
Radius of gyration (ry)	1.28 cm	0.504 in