RHS 152x51x6.4 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 152x51 cal 3 (México) · Caño estructural 152x51 (Argentina)

The RHS 152x51x6.4 steel profile weighs 18.2 kg/m (12.22 lb/ft), has a depth of 152 mm (5.98 in), flange width 51 mm (2.01 in). Cross-sectional area: 2,329.079 mm². Moment of inertia Ix = 574.927 cm⁴, Iy = 97.175 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	152 mm	5.98 in
Width (b)	51 mm	2.01 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	18.2 kg/m	12.22 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,329.08 mm²	3.610 in²
Moment of inertia (Ix)	574.93 cm⁴	13.81 in⁴
Moment of inertia (Iy)	97.18 cm⁴	2.33 in⁴
Elastic section modulus (Sx)	75.65 cm³	4.616 in³
Elastic section modulus (Sy)	38.11 cm³	2.325 in³
Plastic section modulus (Zx)	101.64 cm³	6.202 in³
Plastic section modulus (Zy)	45.49 cm³	2.776 in³
Radius of gyration (rx)	4.97 cm	1.956 in
Radius of gyration (ry)	2.04 cm	0.804 in