RHS 90x50x4 Tata Steel Celsius · Weight & Dimensions

Tata Steel Celsius · 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 8 (México) · Caño estructural 90x50 (Argentina)

The RHS 90x50x4 steel profile weighs 8.2 kg/m (5.48 lb/ft), has a depth of 90 mm (3.54 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,028.531 mm². Moment of inertia Ix = 105.441 cm⁴, Iy = 41.534 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4 mm ≈ 8 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 mm	0.16 in
Fillet radius (r)	6 mm	0.24 in
Weight	8.2 kg/m	5.48 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,028.53 mm²	1.594 in²
Moment of inertia (Ix)	105.44 cm⁴	2.53 in⁴
Moment of inertia (Iy)	41.53 cm⁴	1.00 in⁴
Elastic section modulus (Sx)	23.43 cm³	1.430 in³
Elastic section modulus (Sy)	16.61 cm³	1.014 in³
Plastic section modulus (Zx)	29.44 cm³	1.796 in³
Plastic section modulus (Zy)	19.43 cm³	1.186 in³
Radius of gyration (rx)	3.2 cm	1.261 in
Radius of gyration (ry)	2.01 cm	0.791 in