1J50
1J50 is a Ni-Fe soft magnetic alloy, and its main compositions are about 50% Ni, 48% Fe and other micro-elements. This alloy is characterized by high magnetic permeability, higher saturation induction density, etc. As a soft magnetic material used in alternating current, vortex and loss are induced inside the material due to the alternating magnetization. The smaller the resistivity and the greater the thickness of the alloy, and the higher the frequency under the alternating magnetic field, the greater the eddy loss and the more the decrease of the magnetic performance. So, the material must be manufactured as a thin sheet (strip) and coated with an insulation layer on its surface. Or use a certain method to form an oxide insulation layer on the surface, and such alloys usually adopt magnesium oxide electrophoretic coating.
1J50 [Permalloy 50, 0-50 (US Grade), VACOFLUX 50 (German Grade) and PC-TD-50 (Japanese Grade)]
Product Description:
1J50 is a Ni-Fe soft magnetic alloy, and its main compositions are about 50% Ni, 48% Fe and other micro-elements. This alloy is characterized by high magnetic permeability, higher saturation induction density, etc. As a soft magnetic material used in alternating current, vortex and loss are induced inside the material due to the alternating magnetization. The smaller the resistivity and the greater the thickness of the alloy, and the higher the frequency under the alternating magnetic field, the greater the eddy loss and the more the decrease of the magnetic performance. So, the material must be manufactured as a thin sheet (strip) and coated with an insulation layer on its surface. Or use a certain method to form an oxide insulation layer on the surface, and such alloys usually adopt magnesium oxide electrophoretic coating.
Physical properties:
Density (g/cm³) | 8.2 |
Resistivity under 20℃(Ωm㎡/m) | 0.45 |
Linear expansion coefficient (20℃-200℃) X10-6/℃ | 9.2 |
Saturation magnetostrictive coefficient, λθ/ 10-6 | 25 |
Curie point, Tc/ ℃ | 500 |
Extreme chemical composition:
C≤0.03
P≤0.02
S≤0.02
Mn: 0.3~0.60
Si: 0.15~0.30
Ni: 49.0~50.5
Cu≤0.2
Fe: Balance
The minimum mechanical properties of the alloy at room temperature:
tensile strength/MPa | Yield Strength/MFPa | Elongation（%） | |||
cold hard state | soft state | cold hard state | soft state | cold hard state | soft state |
785 | 450 | 685 | 150 | 3 | 37 |
characteristic:
High magnetic permeability, high saturation magnetic induction intensity, low coercive force, good processing performance, good thermal stability
Application:
1J50 magnetic alloy, a Ni-Fe soft magnetic alloy, mainly applies to high magnetic conductivity yoke iron, sensitive relay, low loss micro motors, low power transformers, pulse transformers, transistor switches, magnetic amplifiers, magnetic modulators, sensitive signal input and output transformer, magnetic sensor of aviation magnetic heading instrument, magnetic sensitive element of magnetic measuring instrument, stator and a movable plate of the precision electric meter, magnetic shielding and magnetic temperature compensating elements.
form:
Precision strips, bright bars, wires, rings, wound cores, punched cores, yokes