RHS 203.2x152.4x4.78 CISC · Weight & Dimensions

CISC, 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 203.2x152.4 cal 6 (México) · Caño estructural 203.2x152.4 (Argentina)

The RHS 203.2x152.4x4.78 steel profile weighs 25.5 kg/m (17.14 lb/ft), has a depth of 203.2 mm (8.00 in), flange width 152.4 mm (6.00 in). Cross-sectional area: 3,249.303 mm². Moment of inertia Ix = 1,953.081 cm⁴, Iy = 1,257.506 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.78 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	203.2 mm	8.00 in
Width (b)	152.4 mm	6.00 in
Thickness (t)	4.8 mm	0.19 in
Fillet radius (r)	9.6 mm	0.38 in
Weight	25.5 kg/m	17.14 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,249.3 mm²	5.036 in²
Moment of inertia (Ix)	1,953.08 cm⁴	46.92 in⁴
Moment of inertia (Iy)	1,257.51 cm⁴	30.21 in⁴
Elastic section modulus (Sx)	192.23 cm³	11.731 in³
Elastic section modulus (Sy)	165.03 cm³	10.071 in³
Plastic section modulus (Zx)	228.23 cm³	13.928 in³
Plastic section modulus (Zy)	187.72 cm³	11.455 in³
Radius of gyration (rx)	7.75 cm	3.052 in
Radius of gyration (ry)	6.22 cm	2.449 in