RHS 300x180x7.1 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 300x180 (México) · Caño estructural 300x180 (Argentina)

The RHS 300x180x7.1 steel profile weighs 50.9 kg/m (34.20 lb/ft), has a depth of 300 mm (11.81 in), flange width 180 mm (7.09 in). Cross-sectional area: 6,484.543 mm². Moment of inertia Ix = 7,958.67 cm⁴, Iy = 3,622.884 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	180 mm	7.09 in
Thickness (t)	7.1 mm	0.28 in
Fillet radius (r)	14.2 mm	0.56 in
Weight	50.9 kg/m	34.20 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,484.54 mm²	10.051 in²
Moment of inertia (Ix)	7,958.67 cm⁴	191.21 in⁴
Moment of inertia (Iy)	3,622.88 cm⁴	87.04 in⁴
Elastic section modulus (Sx)	530.58 cm³	32.378 in³
Elastic section modulus (Sy)	402.54 cm³	24.565 in³
Plastic section modulus (Zx)	645 cm³	39.360 in³
Plastic section modulus (Zy)	454.35 cm³	27.727 in³
Radius of gyration (rx)	11.08 cm	4.362 in
Radius of gyration (ry)	7.47 cm	2.943 in