RHS 122x61x3.6 Tata Steel · Weight & Dimensions

Tata Steel, cold-formed 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 122x61 (México) · Caño estructural 122x61 (Argentina)

The RHS 122x61x3.6 steel profile weighs 9.7 kg/m (6.50 lb/ft), has a depth of 122 mm (4.80 in), flange width 61 mm (2.40 in). Cross-sectional area: 1,232.385 mm². Moment of inertia Ix = 232.607 cm⁴, Iy = 78.826 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	122 mm	4.80 in
Width (b)	61 mm	2.40 in
Thickness (t)	3.6 mm	0.14 in
Fillet radius (r)	7.2 mm	0.28 in
Weight	9.7 kg/m	6.50 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	1,232.39 mm²	1.910 in²
Moment of inertia (Ix)	232.61 cm⁴	5.59 in⁴
Moment of inertia (Iy)	78.83 cm⁴	1.89 in⁴
Elastic section modulus (Sx)	38.13 cm³	2.327 in³
Elastic section modulus (Sy)	25.84 cm³	1.577 in³
Plastic section modulus (Zx)	47.71 cm³	2.911 in³
Plastic section modulus (Zy)	29.42 cm³	1.796 in³
Radius of gyration (rx)	4.34 cm	1.710 in
Radius of gyration (ry)	2.53 cm	0.996 in