RHS 100x50x4 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 100x50 cal 8 (México) · Caño estructural 100x50 (Argentina)

The RHS 100x50x4 steel profile weighs 8.8 kg/m (5.90 lb/ft), has a depth of 100 mm (3.94 in), flange width 50 mm (1.97 in). Cross-sectional area: 1,108.531 mm². Moment of inertia Ix = 137.517 cm⁴, Iy = 45.777 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4 mm ≈ 8 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	100 mm	3.94 in
Width (b)	50 mm	1.97 in
Thickness (t)	4 mm	0.16 in
Fillet radius (r)	6 mm	0.24 in
Weight	8.8 kg/m	5.90 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,108.53 mm²	1.718 in²
Moment of inertia (Ix)	137.52 cm⁴	3.30 in⁴
Moment of inertia (Iy)	45.78 cm⁴	1.10 in⁴
Elastic section modulus (Sx)	27.5 cm³	1.678 in³
Elastic section modulus (Sy)	18.31 cm³	1.117 in³
Plastic section modulus (Zx)	34.78 cm³	2.122 in³
Plastic section modulus (Zy)	21.27 cm³	1.298 in³
Radius of gyration (rx)	3.52 cm	1.387 in
Radius of gyration (ry)	2.03 cm	0.800 in