RHS 120x80x7.1 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 120x80x7.1 steel profile weighs 19.7 kg/m (13.23 lb/ft), has a depth of 120 mm (4.72 in), flange width 80 mm (3.15 in). Cross-sectional area: 2,508.543 mm². Moment of inertia Ix = 457.997 cm⁴, Iy = 241.473 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	80 mm	3.15 in
Thickness (t)	7.1 mm	0.28 in
Fillet radius (r)	14.2 mm	0.56 in
Weight	19.7 kg/m	13.23 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,508.54 mm²	3.888 in²
Moment of inertia (Ix)	458 cm⁴	11.00 in⁴
Moment of inertia (Iy)	241.47 cm⁴	5.80 in⁴
Elastic section modulus (Sx)	76.33 cm³	4.658 in³
Elastic section modulus (Sy)	60.37 cm³	3.684 in³
Plastic section modulus (Zx)	96.25 cm³	5.873 in³
Plastic section modulus (Zy)	72.46 cm³	4.422 in³
Radius of gyration (rx)	4.27 cm	1.682 in
Radius of gyration (ry)	3.1 cm	1.221 in