Fluxtrol A has the highest maximum magnetic permeability and the lowest magnetic losses at low to intermediate frequencies in the Fluxtrol family of soft magnetic composites (favorable magnetic direction). Fluxtrol A also has good mechanical strength, thermal conductivity, and is readily machinable. However, it does have high magnetic and thermal anisotropy, which should be taken into account when using the product.
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.
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Fluxtrol A on common coil styles Typical induction coil configurations where Fluxtrol A is applied as a magnetic flux controller.
2 Turn OD Hair Pin I.D. Multi Turn Pancake I.D. Single Turn Split and Return Transverse Flux Fluxtrol A properties Properties Units Fluxtrol A µr initialperp None 80 µr maximumperp None 142 µr initialpar None 22 µr maximumpar None 28 Bs T 1.5 ρ Ω m 12.5 κperp W/m-K 19 κpar W/m-K 5 CTEperp 1/K 1.3 X 10-5 CTEpar 1/K 1.3 X 10-5 Cp J/g-°C 0.48 Density g/cm3 6.7 Hardness D scale 88 Flexural Strengthperp MPA 40 Flexural Strengthpar MPA 34.0 Modulusperp Tangent 0.07% – MPA 29,600 Moduluspar Tangent 0.07% – MPA 12,300
perp = perpendicular and par = parallel to the pressing direction. Values are typical.
Fluxtrol A graphs Fluxtrol A B-H Curve Enable JavaScript to view this chart; the data is listed below.
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Fluxtrol A B-H Curve Enable JavaScript to view this chart; the data is listed below.
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View data table H (A/m) Bperp Bpar 200 0.023 0.006 500 0.07 0.015 1000 0.167 0.032 1500 0.265 0.049 2000 0.357 0.066 2500 0.44 0.085 3000 0.51 0.102 3500 0.575 0.119 4000 0.63 0.136 5000 0.722 0.171 6000 0.796 0.205 7000 0.858 0.237 9000 0.954 0.301 12000 1.057 0.386 15000 1.132 0.464 20000 1.224 0.576 25000 1.294 0.673 30000 1.346 0.757
Fluxtrol A µᵣ vs H Enable JavaScript to view this chart; the data is listed below.
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View data table H (A/m) µr perp µr par 200 94 23 500 112 24 1000 133 25 1500 141 26 2000 142 27 2500 140 27 3000 136 27 3500 131 27 4000 125 27 5000 115 27 6000 105 27 7000 98 27 9000 84 27 12000 70 26 15000 60 25 20000 49 23 25000 41 21 30000 36 20
Fluxtrol A Losses vs Flux Density Enable JavaScript to view this chart; the data is listed below.
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View data table Pv = aB2(1-B/b) f + cB2 f2 Symbol Description Pv Power Density (W/cm3 ) B Magnetic Flux Density (T) f Frequency (kHz) a, b, c Constants Fluxtrol A Constants Value a 1.55 b 1.8 c 0.004
Fluxtrol A Losses vs Frequency Enable JavaScript to view this chart; the data is listed below.
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View data table Pv = aB2(1-B/b) f + cB2 f2 Symbol Description Pv Power Density (W/cm3 ) B Magnetic Flux Density (T) f Frequency (kHz) a, b, c Constants Fluxtrol A Constants Value a 1.55 b 1.8 c 0.004
Fluxtrol A Stress-Strain Curve Enable JavaScript to view this chart; the data is listed below.
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View data table Flexure Strainperp (mm/mm) Flexure Stressperp (MPA) Flexure Strainpar (mm/mm) Flexure Stresspar (MPA) 0.00000 0.0 0.00000 0.1 0.00039 9.0 0.00040 3.7 0.00080 21.8 0.00080 8.3 0.00120 30.6 0.00120 12.9 0.00159 36.2 0.00200 21.0 0.00180 38.2 0.00279 26.3 0.00200 39.7 0.00359 30.1 0.00219 39.7 0.00439 32.6 0.00240 32.9 0.00479 33.6 0.00279 18.2 0.00519 34.0 0.00320 11.3 0.00559 32.4 0.00360 8.1 0.00640 23.9
Fluxtrol A stock sizes Rounds / billets Size in Inches Size in Millimeters .50 Ø x 2.00 3.50 Ø x 2.00 12.7 Ø x 50.8 89.0 Ø x 50.8 .75 Ø x 2.00 3.50 Ø x 2.5 19.0 Ø x 50.8 89.0 Ø x 63.5 1.00 Ø x 2.00 4.00 Ø x .75 25.4 Ø x 50.8 101.5 Ø x 19.0 1.00 Ø x 3.00 4.00 Ø x 1.00 25.4 Ø x 76.2 101.5 Ø x 25.4 1.25 Ø x 2.00 4.00 Ø x 2.00 31.7 Ø x 50.8 101.5 Ø x 50.8 1.25 Ø x 3.00 4.50 Ø x 1.00 31.7 Ø x 76.2 114.3 Ø x 25.4 1.50 Ø x 2.00 4.50 Ø x 2.00 38.1 Ø x 50.8 114.3 Ø x 50.8 1.50 Ø x 3.00 5.00 Ø x .25 38.1 Ø x 76.2 127.0 Ø x 6.3 1.75 Ø x 2.00 5.00 Ø x .75 44.5 Ø x 50.8 127.0 Ø x 19.0 1.75 Ø x 3.00 5.00 Ø x 1.00 44.5 Ø x 76.2 127.0 Ø x 25.4 2.00 Ø x 2.00 5.00 Ø x 2.00 50.8 Ø x 50.8 127.0 Ø x 50.8 2.00 Ø x 3.00 5.50 Ø x 1.00 50.8 Ø x 76.2 140.0 Ø x 25.4 2.30 Ø x 2.00 5.50 Ø x 2.00 58.4 Ø x 50.8 140.0 Ø x 50.8 2.30 Ø x 3.00 6.00 Ø x .25 58.4 Ø x 76.2 152.4 Ø x 6.3 2.30 Ø x 5.12 6.00 Ø x .75 58.4 Ø x 130.0 152.4 Ø x 19.0 2.50 Ø x 2.00 6.00 Ø x 1.00 63.5 Ø x 50.8 152.4 Ø x 25.4 2.50 Ø x 2.50 6.00 Ø x 2.00 63.5 Ø x 63.5 152.4 Ø x 50.8 2.50 Ø x 3.00 6.50 Ø x .75 63.5 Ø x 76.2 165.1 Ø x 19.0 2.76 Ø x 2.00 6.50 Ø x 1.00 70.1 Ø x 50.8 165.1 Ø x 25.4 2.76 Ø x 2.50 6.50 Ø x 2.00 70.1 Ø x 63.5 165.1 Ø x 50.8 2.76 Ø x 3.00 8.00 Ø x .25 70.1 Ø x 76.2 203.2 Ø x 6.3 3.00 Ø x 1.00 8.00 Ø x .50 76.2 Ø x 25.4 203.2 Ø x 12.7 3.00 Ø x 1.25 8.00 Ø x .75 76.2 Ø x 31.7 203.2 Ø x 19.0 3.00 Ø x 2.00 8.00 Ø x 1.00 76.2 Ø x 50.8 203.2 Ø x 25.4 3.00 Ø x 2.50 8.00 Ø x 1.50 76.2 Ø x 63.5 203.2 Ø x 38.1 3.00 Ø x 3.00 8.00 Ø x 2.00 76.2 Ø x 76.2 203.2 Ø x 50.8 3.50 Ø x 1.00 89.0 Ø x 25.4
Rectangular blocks Size in Inches Size in Millimeters .25 x 1.00 x 4.00 6.3 x 25.4 x 101.5 1.00 x 2.00 x 4.00 25.4 x 50.8 x 101.5 .25 x 1.50 x 4.0 6.3 x 38.1 x 101.5 1.25 x 1.25 x 3.00 31.7 x 31.7 x 76.2 .50 x .50 x 4.00 12.7 x 12.7 x 101.5 .25 x 3.12 x 8.75 6.3 x 79.2 x 222.2 .50 x .75 x 4.00 12.7 x 19.0 x 101.5 .25 x 4.25 x 6.50 6.3 x 107.9 x 165.0 .50 x 1.00 x 4.00 12.7 x 25.4 x 101.5 .25 x 6.50 x 8.75 6.3 x 165.0 x 222.2 .50 x 1.50 x 4.00 12.7 x 38.1 x 101.5 .38 x 3.12 x 8.75 9.6 x 79.2 x 222.2 .50 x 2.00 x 4.00 12.7 x 50.8 x 101.5 .38 x 4.25 x 6.50 9.6 x 107.9 x 165.0 .63 x .63 x 4.00 16.0 x 16.0 x 101.5 .38 x 6.50 x 8.75 9.6 x 165.0 x 222.2 .63 x .75 x 4.00 16.0 x 19.0 x 101.5 .50 x 3.12 x 8.75 12.7 x 79.2 x 222.2 .63 x 1.00 x 4.00 16.0 x 25.4 x 101.5 .50 x 4.25 x 6.50 12.7 x 107.9 x 165.0 .63 x 2.00 x 4.00 16.0 x 50.8 x 101.5 .50 x 6.50 x 8.75 12.7 x 165.0 x 222.2 .75 x .75 x 4.00 19.0 x 19.0 x 101.5 .63 x 4.25 x 6.50 16.0 x 107.9 x 165.0 .75 x 1.00 x 4.00 19.0 x 25.4 x 101.5 .63 x 6.50 x 8.75 16.0 x 165.0 x 222.2 .75 x 1.50 x 4.00 19.0 x 38.1 x 101.5 .75 x 3.12 x 8.75 19.0 x 79.2 x 222.2 .75 x 2.00 x 4.00 19.0 x 50.8 x 101.5 .75 x 4.25 x 6.50 19.0 x 107.9 x 165.0 1.00 x 1.00 x 2.00 25.4 x 25.4x 50.8 .75 x 6.50 x 8.75 19.0 x 165.0 x 222.2 1.00 x 1.00 x 3.00 25.4 x 25.4 x 76.2 1.00 x 3.12 x 8.75 25.4 x 107.9 x 222.2 1.00 x 1.25 x 4.00 25.4 x 31.7 x 101.5 1.00 x 4.25 x 6.50 25.4 x 107.9 x 165.0 1.00 x 1.50 x 3.00 25.4 x 38.1 x 76.2 1.00 x 6.50 x 8.75 25.4 x 165.0 x 222.2 1.00 x 1.50 x 4.00 25.4 x 38.1 x 101.5
Other sizes and near-net shapes available on request: request pricing or contact us .
Compare Fluxtrol SMC grades Grade Type Standout properties Fluxtrol A Machinable Highest 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 100 Machinable Highest 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 50 Machinable Excellent performance over a wide range of frequencies; good mechanical strength, machinability and thermal conductivity. Fluxtrol 25 Machinable Good performance over a wide range of frequencies; best elasticity of the family; excellent machinability; reasonable thermal conductivity. Ferrotron 559H Machinable Highest 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 Original Machinable Similar to Ferrotron 559H with nearly constant permeability over a wide range of flux densities and excellent machinability. Alpha-form MF / LF Formable Magnetic particles in a thermal-curing epoxy binder; molded onto the coil and oven-cured for quick, efficient installation on coils with low tolerances. Fluxtrol LRM Laminate replacement Direct 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 .
