RHS 220x180x6.3 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 220x180 cal 4 (México) · Caño estructural 220x180 (Argentina)

The RHS 220x180x6.3 steel profile weighs 37.5 kg/m (25.21 lb/ft), has a depth of 220 mm (8.66 in), flange width 180 mm (7.09 in). Cross-sectional area: 4,779.029 mm². Moment of inertia Ix = 3,405.85 cm⁴, Iy = 2,503.781 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	220 mm	8.66 in
Width (b)	180 mm	7.09 in
Thickness (t)	6.3 mm	0.25 in
Fillet radius (r)	12.6 mm	0.50 in
Weight	37.5 kg/m	25.21 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,779.03 mm²	7.407 in²
Moment of inertia (Ix)	3,405.85 cm⁴	81.83 in⁴
Moment of inertia (Iy)	2,503.78 cm⁴	60.15 in⁴
Elastic section modulus (Sx)	309.62 cm³	18.894 in³
Elastic section modulus (Sy)	278.2 cm³	16.977 in³
Plastic section modulus (Zx)	366.71 cm³	22.378 in³
Plastic section modulus (Zy)	319.94 cm³	19.524 in³
Radius of gyration (rx)	8.44 cm	3.324 in
Radius of gyration (ry)	7.24 cm	2.850 in