RHS 508x305x9.5 IMCA · Weight & Dimensions

IMCA, cold-formed 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 508x305 (México) · Caño estructural 508x305 (Argentina)

The RHS 508x305x9.5 steel profile weighs 117.0 kg/m (78.60 lb/ft), has a depth of 508 mm (20.00 in), flange width 305 mm (12.01 in). Cross-sectional area: 14,853.586 mm². Moment of inertia Ix = 53,041.815 cm⁴, Iy = 24,253.894 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	508 mm	20.00 in
Width (b)	305 mm	12.01 in
Thickness (t)	9.5 mm	0.37 in
Fillet radius (r)	19 mm	0.75 in
Weight	117.0 kg/m	78.60 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	14,853.59 mm²	23.023 in²
Moment of inertia (Ix)	53,041.81 cm⁴	1274.33 in⁴
Moment of inertia (Iy)	24,253.89 cm⁴	582.70 in⁴
Elastic section modulus (Sx)	2,088.26 cm³	127.434 in³
Elastic section modulus (Sy)	1,590.42 cm³	97.054 in³
Plastic section modulus (Zx)	2,521.61 cm³	153.879 in³
Plastic section modulus (Zy)	1,779.59 cm³	108.597 in³
Radius of gyration (rx)	18.9 cm	7.440 in
Radius of gyration (ry)	12.78 cm	5.031 in