RHS 120x80x4 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 120x80 cal 8 (México) · Caño estructural 120x80 (Argentina)

The RHS 120x80x4 steel profile weighs 11.9 kg/m (8.00 lb/ft), has a depth of 120 mm (4.72 in), flange width 80 mm (3.15 in). Cross-sectional area: 1,508.531 mm². Moment of inertia Ix = 299.465 cm⁴, Iy = 159.447 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	80 mm	3.15 in
Thickness (t)	4 mm	0.16 in
Fillet radius (r)	6 mm	0.24 in
Weight	11.9 kg/m	8.00 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,508.53 mm²	2.338 in²
Moment of inertia (Ix)	299.47 cm⁴	7.19 in⁴
Moment of inertia (Iy)	159.45 cm⁴	3.83 in⁴
Elastic section modulus (Sx)	49.91 cm³	3.046 in³
Elastic section modulus (Sy)	39.86 cm³	2.433 in³
Plastic section modulus (Zx)	60.59 cm³	3.697 in³
Plastic section modulus (Zy)	45.78 cm³	2.793 in³
Radius of gyration (rx)	4.46 cm	1.754 in
Radius of gyration (ry)	3.25 cm	1.280 in