RHS 80x40x2.6 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 80x40 cal 13 (México) · Caño estructural 80x40 (Argentina)

The RHS 80x40x2.6 steel profile weighs 4.5 kg/m (3.06 lb/ft), has a depth of 80 mm (3.15 in), flange width 40 mm (1.57 in). Cross-sectional area: 579.551 mm². Moment of inertia Ix = 46.582 cm⁴, Iy = 15.735 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2.6 mm ≈ 12 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	80 mm	3.15 in
Width (b)	40 mm	1.57 in
Thickness (t)	2.6 mm	0.10 in
Fillet radius (r)	5.2 mm	0.20 in
Weight	4.5 kg/m	3.06 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	579.55 mm²	0.898 in²
Moment of inertia (Ix)	46.58 cm⁴	1.12 in⁴
Moment of inertia (Iy)	15.74 cm⁴	0.38 in⁴
Elastic section modulus (Sx)	11.65 cm³	0.711 in³
Elastic section modulus (Sy)	7.87 cm³	0.480 in³
Plastic section modulus (Zx)	14.64 cm³	0.893 in³
Plastic section modulus (Zy)	9.01 cm³	0.550 in³
Radius of gyration (rx)	2.84 cm	1.116 in
Radius of gyration (ry)	1.65 cm	0.649 in