RHS 508x203x12.7 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 508x203 (México) · Caño estructural 508x203 (Argentina)

The RHS 508x203x12.7 steel profile weighs 133.7 kg/m (89.85 lb/ft), has a depth of 508 mm (20.00 in), flange width 203 mm (7.99 in). Cross-sectional area: 16,998.882 mm². Moment of inertia Ix = 52,792.271 cm⁴, Iy = 12,477.589 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	508 mm	20.00 in
Width (b)	203 mm	7.99 in
Thickness (t)	12.7 mm	0.50 in
Fillet radius (r)	25.4 mm	1.00 in
Weight	133.7 kg/m	89.85 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	16,998.88 mm²	26.348 in²
Moment of inertia (Ix)	52,792.27 cm⁴	1268.33 in⁴
Moment of inertia (Iy)	12,477.59 cm⁴	299.77 in⁴
Elastic section modulus (Sx)	2,078.44 cm³	126.834 in³
Elastic section modulus (Sy)	1,229.32 cm³	75.018 in³
Plastic section modulus (Zx)	2,651.36 cm³	161.796 in³
Plastic section modulus (Zy)	1,386.86 cm³	84.632 in³
Radius of gyration (rx)	17.62 cm	6.938 in
Radius of gyration (ry)	8.57 cm	3.373 in