Nifethal® 52 is a nickel-iron alloy (NiFe alloy) for use at temperatures up to 600°C (1110°F). The alloy is characterized by low resistivity and high temperature coefficient of
resistance.
Typical applications for Nifethal® 52 are in voltage regulators, timing devices, temperature sensitive resistors, temperature compensating devices, and low temperature heating
applications.
Chemical composition
|
Ni %
|
Fe %
|
|
Nominal composition
|
52.0
|
Bal.
|
Mechanical properties
|
Wire size
|
Yield strength
|
Tensile strength
|
Elongation
|
|
Ø
|
Rp0.2
|
Rm
|
A
|
|
mm
|
MPa
|
MPa
|
%
|
|
0.5
|
340
|
610
|
30
|
Physical properties
|
Density g/cm3
|
8.20
|
|
Electrical resistivity at 20°C Ω mm2/m
|
0.37
|
|
Temperature °C
|
100
|
150
|
200
|
250
|
300
|
350
|
400
|
450
|
500
|
TEMPERATURE FACTOR OF RESISTIVITY
|
Ct
|
1.33
|
1.53
|
1.73
|
1.93
|
2.13
|
2.32
|
2.49
|
2.64
|
2.77
|
|
Temperature °C
|
Thermal Expansion X10-6/K
|
COEFFICIENT OF THERMAL EXPANSION
|
20-100
|
10
|
|
Temperature °C
|
20
|
THERMAL CONDUCTIVITY
|
W m-1 K-1
|
17
|
SPECIFIC HEAT CAPACITY
|
Temperature °C
|
20
|
|
kJ kg-1 K-1
|
0.50
|
|
Melting point °C
|
1435
|
|
Max continuous operating temperature in air °C
|
600
|
|
Magnetic properties
|
The material is magnetic up to approximately 530°C (the Curie point).
|
