Precision Soft Magnetic Alloy (1J22, 1J50, 1J79, 1J85)
Precision Alloys have special physical and mechanical properties, and are extensively applied in the key elements and devices of precision motor, electric appliance, instruments and meters, telecommunication equipments, and precision machines.
According to the application and specialties, precision alloys are split into hard magnetic alloy, magnetically soft alloy, elastic alloy, expansion alloy, thermo bimetal, resistance alloy, thermocouple alloy, electric conduction alloy, electric contact alloy, shape memory alloy, superconducting alloy and so on.
1. Description
Soft Magnetic Alloy is one kind of alloy with high permeability and low coercivity in weak magnetic field. This kind of alloy is widely used in radio electronics industry, precision instruments, remote control and automatic control system, generally, it is mainly used in energy conversion and information processing.
1J22
Chemical Content(%)
| Mn |
Ni |
V |
C |
Si |
P |
S |
Fe |
Co |
| 0.21 |
0.2 |
1.3 |
0.01 |
0.19 |
0.004 |
0.003 |
Bal |
50.6 |
Mechanical Properties
| Density |
8.2 g/cm3 |
| Thermal Expansion Coefficient (20~100ºC) |
8.5*10-6/ºC |
| Curie Point |
980 ºC |
| Volume Resistivity (20ºC) |
40 μΩ.cm |
| Saturation Magnetic Stricture Coefficient |
60~100 *10-6 |
| Coercive Force |
128 A/m |
| Magnetic induction strength in different magnetic field |
| B400 |
1.6 |
| B800 |
1.8 |
| B1600 |
2.0 |
| B2400 |
2.1 |
| B4000 |
2.15 |
| B8000 |
2.2 |
2. Usage
It is used in electro-magnet pole, end welded pipe in magnetron, earphone diaphragm, torque motor rotor transducer ferrite core.
3. Features
It has a high saturation magnetic induction and high-magnetostriction coefficient.