RHS 508x305x12.7 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 508x305x12.7 steel profile weighs 154.0 kg/m (103.46 lb/ft), has a depth of 508 mm (20.00 in), flange width 305 mm (12.01 in). Cross-sectional area: 19,589.682 mm². Moment of inertia Ix = 68,685.265 cm⁴, Iy = 31,269.611 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)	12.7 mm	0.50 in
Fillet radius (r)	25.4 mm	1.00 in
Weight	154.0 kg/m	103.46 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	19,589.68 mm²	30.364 in²
Moment of inertia (Ix)	68,685.26 cm⁴	1650.16 in⁴
Moment of inertia (Iy)	31,269.61 cm⁴	751.25 in⁴
Elastic section modulus (Sx)	2,704.14 cm³	165.018 in³
Elastic section modulus (Sy)	2,050.47 cm³	125.128 in³
Plastic section modulus (Zx)	3,292.97 cm³	200.950 in³
Plastic section modulus (Zy)	2,319.87 cm³	141.568 in³
Radius of gyration (rx)	18.72 cm	7.372 in
Radius of gyration (ry)	12.63 cm	4.974 in