RHS 127x102x6.4 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 127x102 cal 3 (México) · Caño estructural 127x102 (Argentina)

The RHS 127x102x6.4 steel profile weighs 20.7 kg/m (13.92 lb/ft), has a depth of 127 mm (5.00 in), flange width 102 mm (4.02 in). Cross-sectional area: 2,661.879 mm². Moment of inertia Ix = 593.141 cm⁴, Iy = 421.566 cm⁴.

Cross-section (not to scale)

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

Dimensions

Property	Metric	Imperial
Depth (h)	127 mm	5.00 in
Width (b)	102 mm	4.02 in
Thickness (t)	6.4 mm	0.25 in
Fillet radius (r)	12.8 mm	0.50 in
Weight	20.7 kg/m	13.92 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	2,661.88 mm²	4.126 in²
Moment of inertia (Ix)	593.14 cm⁴	14.25 in⁴
Moment of inertia (Iy)	421.57 cm⁴	10.13 in⁴
Elastic section modulus (Sx)	93.41 cm³	5.700 in³
Elastic section modulus (Sy)	82.66 cm³	5.044 in³
Plastic section modulus (Zx)	113.89 cm³	6.950 in³
Plastic section modulus (Zy)	97.91 cm³	5.975 in³
Radius of gyration (rx)	4.72 cm	1.858 in
Radius of gyration (ry)	3.98 cm	1.567 in