Iron
Fe
Bal.
Nickel
Ni
78.5~80.0%
Molybdenum
Mo
3.8~4.1%
Silicon
Si
0.3~0.5%
Manganese
Mn
0.6~1.1%
Copper
Cu
≤0.2%
Carbon
C
≤0.03%
Sulphur
S
≤0.02%
Phosphorus
P
≤0.02%
Ni79Mo4 iron-nickel alloy is a 79-80% nickel alloy, a high saturation magnetic induction soft magnetic alloy, with high initial permeability, maximum permeability and low coercivity. The saturation magnetic induction intensity of 1J79 is greater than 0.75T. 1J79 alloy has good anti-rust performance and processing performance, and can be used to make components with extremely precise shapes and sizes.
Ni79Mo4 alloy is smelted in a vacuum induction furnace, and is made into cold-rolled strip, cold-drawn wire or hot-rolled (forged) plate and bar after hot and cold plastic deformation. In the aviation industry and other electronic industries, it is used to produce electronic components with high sensitivity, precise size, small size, low high-frequency loss, good time and temperature stability, and special functions. It is widely used in communication, instrumentation, electronic computer, telemetry, remote control, wireless charging and other systems.
Ni79Mo4 Mechanical performance
| Yield Strength |
Tensile strength |
Elongation |
| Mpa |
Mpa |
% |
| 980 |
1030 |
3~50 |
Ni79Mo4 Physical properties
| Density |
Resistivity at 20℃ |
Coefficient of linear expansion (20℃~200℃) |
Saturation magnetostriction coefficient |
Curie point |
| (g/cm3) |
(Ωmm2/m) |
X10-6/℃ |
λθ/ 10-6 |
Tc/ ℃ |
| 8.6 |
0.55 |
10.3~11.5 |
2.0 |
450 |
| Material magnetic properties |
| Ni79Mo4 |
Initial permeability |
Maximum permeability |
Coercivity |
Saturation magnetic induction |
Cold rolled strip/plate
Thickness, mm |
μ0.08/ (mH/m) |
μm/ (mH/m) |
Hc/ (A/m) |
BS/ T |
| ≥ |
≤ |
| 0.01 mm |
17.5 |
87.5 |
5.6 |
0.75 |
| 0.1~0.19 mm |
25.0 |
162.5 |
2.4 |
| 0.2~0.34 mm |
28.0 |
225.0 |
1.6 |
| 0.35~1.0 mm |
30.0 |
250.0 |
1.6 |
| 1.1~2.5 mm |
27.5 |
225.0 |
1.6 |
| 2.6~3.0 mm |
26.3 |
187.5 |
2.0 |
| Cold drawn wire |
|
| 0.1 mm |
6.3 |
50 |
6.4 |
| Bar |
|
| 8-100 mm |
25 |
100 |
3.2 |
Ni79Mo4 Heat treatment method
| Annealing medium |
Dry hydrogen (the dew point is not higher than -40℃) or vacuum, the residual pressure is not more than 0.1Pa |
| Heating temperature and speed |
1100~1150℃ |
| Holding time/h |
3~6 |
| Cooling rate |
Cool to 600℃ at a rate of 100 ~ 200 ℃/h, and quickly cool to 300℃ and get out of the oven |
Ni79Mo4 Supply form and specification
| Alloy grade |
Form |
Size |
| Ni79Mo4 |
Wire |
D= 0.1~8mm |
| Ni79Mo4 |
Strip |
W= 8~290mm |
T= 0.3~2.5mm |
| Ni79Mo4 |
Foil |
W= 10~100mm |
T= 0.01~0.1mm |
| Ni79Mo4 |
Bar |
Dia= 8~100mm |
L= 50~1000mm |
