RHS 90x50x4.5 V&M do Brasil · Weight & Dimensions

V&M do Brasil, hot-rolled 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 6 (México) · Caño estructural 90x50 (Argentina)

The RHS 90x50x4.5 steel profile weighs 8.8 kg/m (5.95 lb/ft), has a depth of 90 mm (3.54 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,126.852 mm². Moment of inertia Ix = 112.017 cm⁴, Iy = 44.195 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.5 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	90 mm	3.54 in
Width (b)	50 mm	1.97 in
Thickness (t)	4.5 mm	0.18 in
Fillet radius (r)	9 mm	0.35 in
Weight	8.8 kg/m	5.95 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,126.85 mm²	1.747 in²
Moment of inertia (Ix)	112.02 cm⁴	2.69 in⁴
Moment of inertia (Iy)	44.2 cm⁴	1.06 in⁴
Elastic section modulus (Sx)	24.89 cm³	1.519 in³
Elastic section modulus (Sy)	17.68 cm³	1.079 in³
Plastic section modulus (Zx)	31.7 cm³	1.934 in³
Plastic section modulus (Zy)	20.95 cm³	1.278 in³
Radius of gyration (rx)	3.15 cm	1.241 in
Radius of gyration (ry)	1.98 cm	0.780 in