NiFe alloys
Nifethal 70 is a nickel-iron alloy (NiFe alloy) for use at temperatures up to 600. the alloy has very low resistivity and high temperature coefficient of resistance. Some applications for Nifethal 70 are in voltage regulators, timing devices, temperature sensitive resistors, temperature compensating devices and low temperature heating applications.
Nifethal 52 is a nickel-iron alloy (NiFe alloy) for use at temperatures up to 600C. the alloy has low resistivity and high temperature coefficient of resistance. Nifethal 52 is used in voltage regulators, timing devices, temperature sensitive resistors, temperature compensating devices, and low temperature heating applications.
Nifethal 42 is a nickel-iron alloy (NiFe alloy) for use at temperatures up to 600C. the alloys has a moderate constant thermal expansion factor up to 300C. Nifethal 42 is used in high-temperature thermostats, for example, gas and electric stoves.
Nifethal 70 is a nickel-iron alloy (NiFe alloy) for use at temperatures up to 600C (1110F). the alloy is characterized by very low resistivity and high temperature coefficient of resistance.
Typical applications for Nifethal 70 are in voltage regulators, timing devices, temperature sensitive resistors, temperature compensating devices and low temperature heating applications.
Chemical composition
| Nifethal 70 |
Ni % |
Fe % |
|---|
| Nominal composition |
72 |
Bal. |
|---|
Mechanical properties
| Wire size |
Yield strength |
Tensile strength |
Elongation |
|---|
|
|
R p0.2 |
Rm |
A |
|---|
| mm |
MPa |
MPa |
% |
|---|
| 0.5 |
340 |
640 |
30 |
Physical properties
| Density g/cm3 |
8.45 |
|---|
| Electrical resistivity at 20C mm2/m |
0.20 |
|---|
| Temperature C |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
|---|
TEMPERATURE FACTOR of RESISTIVITY
| Ct |
1.42 |
1.68 |
1.91 |
2.19 |
2.47 |
2.75 |
3.03 |
3.34 |
3.66 |
|---|
| Temperature C |
Thermal Expansion X10-6/K |
|---|
COEFFICIENT of THERMAL EXPANSION
| 20-100 |
15 |
|---|
| Temperature C |
20 |
|---|
THERMAL CONDUCTIVITY
| W m-1 K-1 |
17 |
|---|
| Temperature C |
20 |
|---|
SPECIFIC HEAT CAPACITY
| KJ kg-1 K-1 |
0.52 |
|---|
| Melting point C |
1430 |
|---|
| Max continuous operating temperature in air C |
600 |
|---|
| Magnetic properties |
the material is magnetic up to approximately 610C (the Curie point).
|
|---|
