RHS 120x80x5.6 V&M do Brasil · Weight & Dimensions

V&M do Brasil, hot-rolled 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 120x80 (México) · Caño estructural 120x80 (Argentina)

The RHS 120x80x5.6 steel profile weighs 16.0 kg/m (10.73 lb/ft), has a depth of 120 mm (4.72 in), flange width 80 mm (3.15 in). Cross-sectional area: 2,033.801 mm². Moment of inertia Ix = 385.557 cm⁴, Iy = 204.507 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 5.6 mm ≈ 4 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	80 mm	3.15 in
Thickness (t)	5.6 mm	0.22 in
Fillet radius (r)	11.2 mm	0.44 in
Weight	16.0 kg/m	10.73 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,033.8 mm²	3.152 in²
Moment of inertia (Ix)	385.56 cm⁴	9.26 in⁴
Moment of inertia (Iy)	204.51 cm⁴	4.91 in⁴
Elastic section modulus (Sx)	64.26 cm³	3.921 in³
Elastic section modulus (Sy)	51.13 cm³	3.120 in³
Plastic section modulus (Zx)	79.64 cm³	4.860 in³
Plastic section modulus (Zy)	60.11 cm³	3.668 in³
Radius of gyration (rx)	4.35 cm	1.714 in
Radius of gyration (ry)	3.17 cm	1.248 in