Machinable soft magnetic composite

Ferrotron 559H Original

Nearly constant permeability and excellent machinability

Similar to Ferrotron 559H standard, Original has nearly constant permeability over a wide range of flux densities and excellent machinability. When compared to Ferrotron 559H, Original has better mechanical strength, higher magnetic permeability, saturation flux density and thermal conductivity. These improvements do come at a cost of dielectric strength and magnetic losses.

Note: There are many variables involved in an induction process. In order to utilize the fullest potential of our product, you must help narrow down the parameters you are operating with. Each grade of Fluxtrol material has its own distinctive properties that are beneficial to a certain range of electrical and design parameters.

Contact Fluxtrol Inc. to receive more information about which material is right for you.

To buy Ferrotron 559H Original, contact us or request pricing and we will be in touch shortly.

Ferrotron 559H Original on common coil styles

Typical induction coil configurations where Ferrotron 559H Original is applied as a magnetic flux controller.

2 Turn O.D. coil with Ferrotron 559H Original
2 Turn O.D.
Hair Pin coil with Ferrotron 559H Original
Hair Pin
I.D. Multi Turn coil with Ferrotron 559H Original
I.D. Multi Turn
Pancake coil with Ferrotron 559H Original
Pancake
I.D. Single Turn coil with Ferrotron 559H Original
I.D. Single Turn
Split and Return coil with Ferrotron 559H Original
Split and Return
Transverse Flux coil with Ferrotron 559H Original
Transverse Flux

Ferrotron 559H Original properties

PropertyUnitsFerrotron 559H Original
µr initialperpNone20
µr maximumperpNone24
µr initialparNone15
µr maximumparNone18
BsT1.3
Dielectric StrengthkV/m40
κperpW/m-K7.8
κparW/m-K4.4
CTEperp1/K1.3 X 10-5
CTEpar1/K1.4 X 10-5
CpJ/g-°C0.48
Densityg/cm36.15
HardnessD scale93
Flexural StrengthperpMPA50.8
Flexural StrengthparMPA50.4
ModulusperpTangent 0.07% – MPA32,000
ModulusparTangent 0.07% – MPA33,800

perp = perpendicular and par = parallel to the pressing direction. Values are typical.

Ferrotron 559H Original graphs

Ferrotron 559H Original B-H Curve

Ferrotron 559H Original B-H Curve

View data table
H (A/m)BperpBpar
3000.0070.006
5000.0160.010
10000.0270.020
20000.0570.041
30000.0870.063
40000.1180.085
50000.1480.107
60000.1780.130
80000.2400.175
100000.3000.219
120000.3560.265
150000.4370.333
200000.5620.438
250000.6740.540
300000.7730.635
350000.8600.727
400000.9370.808
500001.0670.952

Ferrotron 559H Original µᵣ vs H

View data table
H (A/m)µrperpµrpar
3002015
5002116
10002216
20002317
30002317
40002317
50002417
60002417
80002417
100002417
120002418
150002318
200002217
250002117
300002017
350002016
400001916
500001715

Ferrotron 559H Original Losses vs Flux Density

View data table
Pv = aB2(1-B/b)f + cB2f2
SymbolDescription
PvPower Density (W/cm3)
BMagnetic Flux Density (T)
fFrequency (kHz)
a, b, cConstants
Ferrotron 559H Original ConstantsValue
a1.89
b1.8
c0.0005

Ferrotron 559H Original Losses vs Frequency

View data table
Pv = aB2(1-B/b)f + cB2f2
SymbolDescription
PvPower Density (W/cm3)
BMagnetic Flux Density (T)
fFrequency (kHz)
a, b, cConstants
Ferrotron 559H Original ConstantsValue
a1.89
b1.8
c0.0005

Ferrotron 559H Original Stress-Strain Curve

View data table
Flexure Strainperp (mm/mm)Flexure Stressperp (MPA)Flexure Strainpar (mm/mm)Flexure Stresspar (MPA)
0.000000.00.000000.0
0.000497.20.0005010.4
0.0010023.40.0010027.1
0.0015037.90.0015040.7
0.0019948.10.0020049.0
0.0022050.30.0022050.3
0.0025050.60.0024049.9
0.0027048.00.0026047.3
0.0030037.70.0030034.8
0.0034925.60.0035020.6
0.0040018.80.0040014.3
0.0045014.50.0045010.8

Ferrotron 559H Original stock sizes

Rounds / billets

Size in InchesSize in Millimeters
0.500 Ø X 2.002.000 Ø X 3.0012.7 Ø X 50.850.8 Ø X 76.2
0.670 Ø X 2.002.300 Ø X 2.0017.0 Ø X 50.858.4 Ø X 50.8
0.750 Ø X 2.002.300 Ø X 3.0019.0 Ø X 50.858.4 Ø X 76.2
1.000 Ø X 2.002.500 Ø X 2.0025.4 Ø X 50.863.5 Ø X 50.8
1.250 Ø X 2.002.500 Ø X 2.5031.7 Ø X 50.863.5 Ø X 63.5
1.250 Ø X 3.002.500 Ø X 3.0031.7 Ø X 76.263.5 Ø X 76.2
1.500 Ø X 2.002.760 Ø X 2.0038.1 Ø X 50.870.1 Ø X 50.8
1.500 Ø X 3.002.760 Ø X 3.0038.1 Ø X 76.270.1 Ø X 76.2
1.750 Ø X 2.003.000 Ø X 1.0044.5 Ø X 50.876.2 Ø X 25.4
1.750 Ø X 3.003.000 Ø X 2.0044.5 Ø X 76.276.2 Ø X 50.8
2.000 Ø X 2.004.00 Ø X 0.7550.8 Ø X 50.8101.5 Ø X 19.0

Rectangular blocks

Size in InchesSize in Millimeters
0.63 X 0.63 X 4.0016 X 16 X 101.5
0.75 X 0.75 X 4.0019 X 19 X 101.5
0.75 X 2.00 X 4.0019 X 50.8 X 101.5
1.00 X 1.00 X 2.0025.4 X 25.4 X 50.8
0.75 X 6.50 X 8.7519 X 165 X 222.2

Other sizes and near-net shapes available on request: request pricing or contact us.

Compare Fluxtrol SMC grades

GradeTypeStandout properties
Fluxtrol AMachinableHighest maximum permeability and lowest magnetic losses at low to intermediate frequencies (favorable direction); good strength and thermal conductivity; readily machinable. High magnetic and thermal anisotropy.
Fluxtrol 100MachinableHighest thermal conductivity, saturation flux density and flexural strength of the family; magnetic properties similar to Fluxtrol A with much less anisotropy; good machinability with sharp tools and high spindle speeds.
Fluxtrol 50MachinableExcellent performance over a wide range of frequencies; good mechanical strength, machinability and thermal conductivity.
Fluxtrol 25MachinableGood performance over a wide range of frequencies; best elasticity of the family; excellent machinability; reasonable thermal conductivity.
Ferrotron 559HMachinableHighest dielectric strength and lowest losses at high frequencies; nearly constant permeability across flux densities and frequencies; regarded by many as the most machinable grade.
Ferrotron 559H OriginalMachinableSimilar to Ferrotron 559H with nearly constant permeability over a wide range of flux densities and excellent machinability.
Alpha-form MF / LFFormableMagnetic particles in a thermal-curing epoxy binder; molded onto the coil and oven-cured for quick, efficient installation on coils with low tolerances.
Fluxtrol LRMLaminate replacementDirect replacement for laminations; near-net shapes, lower coil-copper temperatures and shorter build time than lamination stacks.

Properties are qualitative. Grade selection depends on frequency, coil geometry, cooling and process: ask an engineer.

Optimizing an induction process?

Talk with a Fluxtrol engineer about your coil, material or heat pattern challenge.