Product searchMagnetic material Nickel Iron
YMPC (81%Ni-5.5%Mo-Fe)
Related standardsJIS C2531 PC equivalent
ApplicationsCurrent sensors, EPS torque sensors, audio magnetic heads, transformer cores, magnetic shields, watch stators and shield plates, etc.
PC permalloy with high magnetic permeability.
Due to its low coercive force, this alloy has low loss, making it well suited for use in current sensors and torque sensors.
It has superior resin mold characteristics and abrasion resistance. It is also suitable to audio magnetic head applications.
Chemical composition
[wt%]
| Ni | Mo | Fe | Other | |
|---|---|---|---|---|
| Typical values | 81 | 5.5 | 13 | Rem. |
Physical properties
| Melting point [℃] | 1430 |
|---|---|
| Curie point [℃] | 480 |
| Density [g/cm3@20℃] | 8.8 |
| Thermal expansion coefficient [10-6/K@30-300℃] |
12 |
| Volume resistivity [μΩ・m] | 0.63 |
| Young’s modulus [kN/mm2] | 220 |
Magnetic annealing
YMPC requires magnetic annealing (annealing at high temperature) in order to achieve higher magnetic properties.
| Recommended atmosphere | In hydrogen |
|---|---|
| Recommended heat treatment temperature | 1,100℃ |
| Recommended retention time | 2 hours |
| Recommended cooling conditions | Furnace cooling |
Mechanical properties
| Temper | Vickers hardness (typical value) [HV] |
|---|---|
| A (0.50mmt) |
150 |
| H (0.35mmt) |
315 |
DC magnetic characteristics
| Initial magnetic permeability µi [-] | 30,000 Min. |
|---|---|
| Maximum magnetic permeability µm [-] | 100,000 Min. |
| Coercive force Hc [A/m] | 2 Max. |
| Saturation magnetic flux density B1000 [T] | 0.7 Min. |
*Please note that the values in all the tables are reference values and are subject to change without notice.
AC magnetic characteristics
Effective magnetic permeability μe
| Product plate thickness [mm] |
Frequency [kHz] |
|
|---|---|---|
| 0.3 | 1.0 | |
| 0.20 | 24,000 Min. | 10,000 Min. |
| 0.30 | 12,000 Min. | 6,000 Min. |
| 0.40 | 8,500 Min. | 5,000 Min. |
| 0.50 | 8,000 Min. | 4,500 Min. |
