40 to 50% Nickel-Iron Alloys
Cost Optimized Solutions for Demanding Magnetic Sensor Applications
This group of nickel-iron alloys is a good choice when it comes to detecting high currents or guiding the magnetic flux of hard magnets (e.g. in a torque sensor). This class of materials is characterized by saturation inductions of about 1.3 T to 1.5 T, a coercivity between 3.5 A/m and 10 A/m as well as high permeability. By selecting appropriate rolling and annealing conditions, the shape of the magnetization curve can be varied over a wide range.
Benefits:
- Low coercivity
- High saturation polarization
- Lowest specific iron-losses
PERMENORM® 5000 H2 - typical thickness of 0.1 to 0.35 mm
- Toroidal cores and core laminations, e.g. in current transformers and in residual current devices (RCDs)
- Storage chokes
- Laminated stacks
- Shieldings
PERMENORM® 5000 V5 - isotropic microstructure
- Rotor and stator laminations
- Relay parts
- Sensors
- Flux guiding parts
MEGAPERM® 40L
- Stacked laminations in high speed motors
- Flux guiding parts
- Parts for sensors, relay and system parts, transformers and chokes
- Sensitive sensor applications
- Low loss motors, especially for high frequencies
| Alloy | Strip | Solid Material |
|---|---|---|
| PERMENORM 5000 H2 | ✔ | ✔ |
| PERMENORM 5000 V5 | ✔ | ✔ |
| MEGAPERM 40L | ✔ | ✔ |
| ULTRAVAC 44 V6 | ✔ |
PERMENORM 5000 H2 and PERMENORM 5000 V5 both have the same composition with a saturation polarization of JS = 1.55 T. These technically important materials, with round shape of the hysteresis loop and small coercivity, have either a scondary-recrystallized or an isotropic microstructure developed by primary recrystallization. The permeability steadily increases with higher final annealing temperature and correspondingly larger grain size.
PERMENORM 5000 V5, with an isotropic structure (rotor grade), offers a low coercivity of HC ≈ 4 A/m. The maximum DC permeability is well above µmax > 100,000.
MEGAPERM 40L has a Ni-content of 40 wt% and combines high saturation of JS = 1.48 T with increased electrical resistivity of ρ = 0.6 µΩm.
ULTRAVAC 44 V6 is a 44%Ni3%Mo non-oriented NiFe-alloy with higher saturation polarization than MUMETALL. The highest electrical resistivity (ρ = 0.8 µΩm) for this type of alloys leads to lowest magnetization losses.
PERMENORM® 5000 H2 - typical thickness of 0.1 to 0.35 mm
- Toroidal cores and core laminations, e.g. in current transformers and in residual current devices (RCDs)
- Storage chokes
- Laminated stacks
- Shieldings
PERMENORM® 5000 V5 - isotropic microstructure
- Rotor and stator laminations
- Relay parts
- Sensors
- Flux guiding parts
MEGAPERM® 40L
- Stacked laminations in high speed motors
- Flux guiding parts
- Parts for sensors, relay and system parts, transformers and chokes
- Sensitive sensor applications
- Low loss motors, especially for high frequencies
| Alloy | Strip | Solid Material |
|---|---|---|
| PERMENORM 5000 H2 | ✔ | ✔ |
| PERMENORM 5000 V5 | ✔ | ✔ |
| MEGAPERM 40L | ✔ | ✔ |
| ULTRAVAC 44 V6 | ✔ |
PERMENORM 5000 H2 and PERMENORM 5000 V5 both have the same composition with a saturation polarization of JS = 1.55 T. These technically important materials, with round shape of the hysteresis loop and small coercivity, have either a scondary-recrystallized or an isotropic microstructure developed by primary recrystallization. The permeability steadily increases with higher final annealing temperature and correspondingly larger grain size.
PERMENORM 5000 V5, with an isotropic structure (rotor grade), offers a low coercivity of HC ≈ 4 A/m. The maximum DC permeability is well above µmax > 100,000.
MEGAPERM 40L has a Ni-content of 40 wt% and combines high saturation of JS = 1.48 T with increased electrical resistivity of ρ = 0.6 µΩm.
ULTRAVAC 44 V6 is a 44%Ni3%Mo non-oriented NiFe-alloy with higher saturation polarization than MUMETALL. The highest electrical resistivity (ρ = 0.8 µΩm) for this type of alloys leads to lowest magnetization losses.
| Alloy | Saturation Polarisation Js [T] |
Coercivity HC [A/m] |
Permeability μmax |
|---|---|---|---|
| PERMENORM 5000 H2 | 1.55 | 5 | 120,000 |
| PERMENORM 5000 V5 | 1.55 | 4 | 135,000 |
| MEGAPERM 40L | 1.48 | 4 | 75,000 |
| ULTRAVAC 44 V6 | 1.35 | 3.5 | 100,000 |
| Alloy | Mass Density ρ [g / cm3] |
Electrical Resistivity ρel [μΩm] |
Curie Temperature TC [°C] |
Thermal Conductivity λ [W/mK] |
|---|---|---|---|---|
| PERMENORM 5000 H2 | 8.25 | 0.45 | 440 | 13 - 14 |
| PERMENORM 5000 V5 | 8.25 | 0.45 | 440 | 13 - 14 |
| MEGAPERM 40L | 8.2 | 0.6 | 310 | 13 - 14 |
| ULTRAVAC 44 V6 | 8.25 | 0.8 | 300 | 13 - 14 |
| Alloy | Saturation Polarisation Js [T] |
Coercivity HC [A/m] |
Permeability μmax |
|---|---|---|---|
| PERMENORM 5000 H2 | 1.55 | 5 | 120,000 |
| PERMENORM 5000 V5 | 1.55 | 4 | 135,000 |
| MEGAPERM 40L | 1.48 | 4 | 75,000 |
| ULTRAVAC 44 V6 | 1.35 | 3.5 | 100,000 |
| Alloy | Mass Density ρ [g / cm3] |
Electrical Resistivity ρel [μΩm] |
Curie Temperature TC [°C] |
Thermal Conductivity λ [W/mK] |
|---|---|---|---|---|
| PERMENORM 5000 H2 | 8.25 | 0.45 | 440 | 13 - 14 |
| PERMENORM 5000 V5 | 8.25 | 0.45 | 440 | 13 - 14 |
| MEGAPERM 40L | 8.2 | 0.6 | 310 | 13 - 14 |
| ULTRAVAC 44 V6 | 8.25 | 0.8 | 300 | 13 - 14 |
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