RHS 120x80x3.6 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 (México) · Caño estructural 120x80 (Argentina)

The RHS 120x80x3.6 steel profile weighs 10.8 kg/m (7.26 lb/ft), has a depth of 120 mm (4.72 in), flange width 80 mm (3.15 in). Cross-sectional area: 1,365.91 mm². Moment of inertia Ix = 273.499 cm⁴, Iy = 145.912 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.6 mm ≈ 9 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	80 mm	3.15 in
Thickness (t)	3.6 mm	0.14 in
Fillet radius (r)	5.4 mm	0.21 in
Weight	10.8 kg/m	7.26 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,365.91 mm²	2.117 in²
Moment of inertia (Ix)	273.5 cm⁴	6.57 in⁴
Moment of inertia (Iy)	145.91 cm⁴	3.51 in⁴
Elastic section modulus (Sx)	45.58 cm³	2.782 in³
Elastic section modulus (Sy)	36.48 cm³	2.226 in³
Plastic section modulus (Zx)	55.11 cm³	3.363 in³
Plastic section modulus (Zy)	41.67 cm³	2.543 in³
Radius of gyration (rx)	4.47 cm	1.762 in
Radius of gyration (ry)	3.27 cm	1.287 in