RHS 300x180x8 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 300x180x8 steel profile weighs 57.0 kg/m (38.29 lb/ft), has a depth of 300 mm (11.81 in), flange width 180 mm (7.09 in). Cross-sectional area: 7,259.186 mm². Moment of inertia Ix = 8,831.377 cm⁴, Iy = 4,011.785 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)	8 mm	0.31 in
Fillet radius (r)	16 mm	0.63 in
Weight	57.0 kg/m	38.29 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	7,259.19 mm²	11.252 in²
Moment of inertia (Ix)	8,831.38 cm⁴	212.17 in⁴
Moment of inertia (Iy)	4,011.78 cm⁴	96.38 in⁴
Elastic section modulus (Sx)	588.76 cm³	35.928 in³
Elastic section modulus (Sy)	445.75 cm³	27.202 in³
Plastic section modulus (Zx)	718.63 cm³	43.854 in³
Plastic section modulus (Zy)	505.8 cm³	30.866 in³
Radius of gyration (rx)	11.03 cm	4.342 in
Radius of gyration (ry)	7.43 cm	2.927 in