RHS 102x76x6.4 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 102x76 cal 3 (México) · Caño estructural 102x76 (Argentina)

The RHS 102x76x6.4 steel profile weighs 15.6 kg/m (10.50 lb/ft), has a depth of 102 mm (4.02 in), flange width 76 mm (2.99 in). Cross-sectional area: 2,009.079 mm². Moment of inertia Ix = 272.189 cm⁴, Iy = 171.243 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	102 mm	4.02 in
Width (b)	76 mm	2.99 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	15.6 kg/m	10.50 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,009.08 mm²	3.114 in²
Moment of inertia (Ix)	272.19 cm⁴	6.54 in⁴
Moment of inertia (Iy)	171.24 cm⁴	4.11 in⁴
Elastic section modulus (Sx)	53.37 cm³	3.257 in³
Elastic section modulus (Sy)	45.06 cm³	2.750 in³
Plastic section modulus (Zx)	66.71 cm³	4.071 in³
Plastic section modulus (Zy)	54.33 cm³	3.316 in³
Radius of gyration (rx)	3.68 cm	1.449 in
Radius of gyration (ry)	2.92 cm	1.149 in