Iron
Fe
Bal.
Nickel
Ni
49.5~51.0%
Chromium
Cr
3.8~4.2%
Silicon
Si
1.1~1.4%
Manganese
Mn
0.3~0.6%
Copper
Cu
≤0.2%
Carbon
C
≤0.03%
Sulphur
S
≤0.02%
Phosphorus
P
≤0.02%
Ni50Cr14Si Fe-Ni alloy is a low-frequency soft magnetic material with high permeability and low coercivity in a weak magnetic field. In the early days, iron-nickel alloys were used for telephone communications, and then a heat treatment process and vacuum smelting were used to greatly improve the characteristics of the alloy. The main characteristic of Ni50Cr14Si soft magnetic alloy is that it has high saturation magnetic induction and soft magnetic permeability, various transformers, relays, electromagnetic clutch cores that work in a medium magnetic field.
Ni50Cr14Si Mechanical behavior
Yield strength |
Tensile Strength |
Elongation |
Mpa |
Mpa |
% |
Cold state |
Soft state |
Cold state |
Soft state |
2~40 |
833 |
147 |
882 |
500 |
Physical properties
Density (g/cm3) |
8.2 |
Resistivity at 20℃(Ωmm2/m) |
0.9 |
Linear expansion coefficient(20℃~200℃)X10-6/℃ |
- |
Saturation magnetostriction coefficient λθ/ 10-6 |
- |
Curie point Tc/ ℃ |
360 |
Magnetic properties |
Ni50Cr14Si |
Grade |
Initial permeability |
Maximum permeability |
Coercivity |
Saturation magnetic induction |
Thickness of cold rolled strip, mm |
Ⅱ |
μ0.4/ (mH/m) |
μm/ (mH/m) |
Hc/ (A/m) |
BS/ T |
|
|
≥ |
≤ |
|
0.02~0.04 mm |
Ⅱ |
31.0 |
31.0 |
12.0 |
1.00 |
0.05~0.09 mm |
Ⅱ |
31.0 |
31.0 |
12.0 |
|
0.10~0.19 mm |
Ⅱ |
36.0 |
36.0 |
10.0 |
|
0.20~0.34 mm |
Ⅱ |
37.5 |
37.5 |
10.0 |
|
0.35~0.5 0mm |
Ⅱ |
4.4 |
44.0 |
8.0 |
|
Hot rolled (forged) sheet |
- |
|
|
3~22 mm |
|
2.0 |
20.0 |
20.0 |
|
Hot rolled bar |
- |
|
|
8~100 mm |
|
2.0 |
20.0 |
20.0 |
|
Product heat treatment proces |
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℃, cooling to 400-500℃ at a rate of not more than 200℃/h, and then cooling to 200℃ at a rate of not less than 400℃/h |
Holding time/h |
3~6 |
Cooling rate |
Cool down to 400-500°C at a rate of no more than 200°C/h, then cool to 200°C at a rate of no less than 400°C/h to get out of the oven |
Supply Type
Alloy grade |
Form |
Size |
Ni50Cr14Si |
Wire |
D= 0.1~8mm |
Ni50Cr14Si |
Strip |
W= 8~290mm |
T= 0.3~2.5mm |
Ni50Cr14Si |
Foil |
W= 10~100mm |
T= 0.01~0.1mm |
Ni50Cr14Si |
Bar |
Dia= 8~100mm |
L= 50~1000mm |