RHS 508x102x7.9 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 508x102 (México) · Caño estructural 508x102 (Argentina)

The RHS 508x102x7.9 steel profile weighs 72.9 kg/m (49.01 lb/ft), has a depth of 508 mm (20.00 in), flange width 102 mm (4.02 in). Cross-sectional area: 9,227.64 mm². Moment of inertia Ix = 24,752.68 cm⁴, Iy = 1,826 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	508 mm	20.00 in
Width (b)	102 mm	4.02 in
Thickness (t)	7.9 mm	0.31 in
Fillet radius (r)	15.8 mm	0.62 in
Weight	72.9 kg/m	49.01 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	9,227.64 mm²	14.303 in²
Moment of inertia (Ix)	24,752.68 cm⁴	594.68 in⁴
Moment of inertia (Iy)	1,826 cm⁴	43.87 in⁴
Elastic section modulus (Sx)	974.51 cm³	59.469 in³
Elastic section modulus (Sy)	358.04 cm³	21.849 in³
Plastic section modulus (Zx)	1,319.33 cm³	80.511 in³
Plastic section modulus (Zy)	399.03 cm³	24.351 in³
Radius of gyration (rx)	16.38 cm	6.448 in
Radius of gyration (ry)	4.45 cm	1.751 in