RHS 120x80x6.3 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 cal 4 (México) · Caño estructural 120x80 (Argentina)

The RHS 120x80x6.3 steel profile weighs 17.7 kg/m (11.91 lb/ft), has a depth of 120 mm (4.72 in), flange width 80 mm (3.15 in). Cross-sectional area: 2,259.029 mm². Moment of inertia Ix = 420.868 cm⁴, Iy = 222.604 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.3 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	80 mm	3.15 in
Thickness (t)	6.3 mm	0.25 in
Fillet radius (r)	12.6 mm	0.50 in
Weight	17.7 kg/m	11.91 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,259.03 mm²	3.501 in²
Moment of inertia (Ix)	420.87 cm⁴	10.11 in⁴
Moment of inertia (Iy)	222.6 cm⁴	5.35 in⁴
Elastic section modulus (Sx)	70.14 cm³	4.281 in³
Elastic section modulus (Sy)	55.65 cm³	3.396 in³
Plastic section modulus (Zx)	87.63 cm³	5.347 in³
Plastic section modulus (Zy)	66.06 cm³	4.031 in³
Radius of gyration (rx)	4.32 cm	1.699 in
Radius of gyration (ry)	3.14 cm	1.236 in