1J50 permalloy matel mesh, customized, soft magnetic alloy wire ,
for shielding
Normal composition%
| Ni | 45~46.5 | Fe | Bal. | Mn | 0.6~1.0 | Si | 0.15~0.3 |
| Mo | - | Cu | ≤0.2 | | | | |
| C | ≤0.03 | P | ≤0.02 | S | ≤0.02 | | |
Typical Mechanical properties
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| - | - | 3~35 |
Typical Physical properties
| Density (g/cm3) | 8.2 |
| Electrical resistivity at 20℃(Ωmm2/m) | 0.45 |
| Coefficient of linear expansion(20℃~200℃)X10-6/℃ | - |
| Saturation magnetostriction coefficient λθ/ 10-6 | 25,0 |
| Curie point Tc/ ℃ | 400 |
The magnetic properties of alloys with high permeability in weak
fields |
| 1J46 | Initial permeability | Maximum permeability | Coercivity | Saturation magnetic induction intensity |
Сold-rolled strip/ sheet.
Thickness, mm | μ0.08/ (mH/m) | μm/ (mH/m) | Hc/ (A/m) | BS/ T |
| ≥ | ≤ |
| 0.02~0.04 mm | 1.6 | 22.5 | 32.0 |
1.5 |
| 0.1~0.19 mm | 2.5 | 31.3 | 20.0 |
| 0.2~0.34 mm | 3.1 | 37.5 | 16.0 |
| 0.35~2.50 mm | 3.5 | 45.0 | 12.0 |
| Bar | |
| 8-100 mm | 2.5 | 31.3 | 16.0 |
| Mode of heat treatment |
| Annealing media | Vacuum with a residual pressure not higher than 0.1Pa, hydrogen
with a dew point of not higher than minus 40 ℃. |
| The heating temperature and rate | 1100~1150℃ |
| Holding time/h | 3~6 |
| Cooling rate | With 100 ~ 200 ℃/ h cooled to 600 ℃, Rapid cooling to 300 baked |
Ohmalloy-1J50 Iron-nickel alloy( soft magnetic alloy) mostly in an alternating
magnetic field used mainly for high magnetic yoke, sensitive relays, low-loss micro-motor, small
power transformers, pulse transformer, transistor switches,
magnetic amplifier magnetic modulator, sensitive signal input and
output transformers, magnetic heading aviation instrumentation
magnetic sensor, magnetic susceptibility measurement instrument
components, precision meter movable piece and the stator magnetic
shielding and magnetic temperature compensation element.
