RHS 203x152x6.4 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 203x152 cal 3 (México) · Caño estructural 203x152 (Argentina)

The RHS 203x152x6.4 steel profile weighs 33.4 kg/m (22.43 lb/ft), has a depth of 203 mm (7.99 in), flange width 152 mm (5.98 in). Cross-sectional area: 4,274.679 mm². Moment of inertia Ix = 2,508.545 cm⁴, Iy = 1,606.728 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6.4 mm ≈ 3 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	203 mm	7.99 in
Width (b)	152 mm	5.98 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	33.4 kg/m	22.43 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,274.68 mm²	6.626 in²
Moment of inertia (Ix)	2,508.55 cm⁴	60.27 in⁴
Moment of inertia (Iy)	1,606.73 cm⁴	38.60 in⁴
Elastic section modulus (Sx)	247.15 cm³	15.082 in³
Elastic section modulus (Sy)	211.41 cm³	12.901 in³
Plastic section modulus (Zx)	296.44 cm³	18.090 in³
Plastic section modulus (Zy)	243.28 cm³	14.846 in³
Radius of gyration (rx)	7.66 cm	3.016 in
Radius of gyration (ry)	6.13 cm	2.414 in