Project Description
Soft Magnetic Alloys with Constant Permeability
1J66
Soft magnetic alloys with constant permeability have little change in permeability in a wide range of magnetic field temperature and frequency. Used for manufacturing constant inductance components.
Chemical Composition, %
| Alloy | C | P | S | Si | Mn | Ni | Fe |
| 1J66 | ≤0.03 | ≤0.02 | ≤0.02 | ≤0.10 | 0.70-1.10 | 64.5-65.5 | Rest |
Magnetic Properties
| Alloy | Thickness, mm | Class | Permeability induction, μL(mH/m) | Ac stable value α ~% | Ac/Dc stable value α ~% | Temp. Stable value αT% |
| 1J66 | 0.05-0.10 | Ⅰ Ⅱ | ≥2800(3.50) ≥3000(3.75) | ≤10 ≤7 | ≤9 ≤6 | ≤8 ≤5 |
Typical Physical Constants and Mechanical Properties
| Alloy | Density, g/cm3 | Curie Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
| 1J66 | 8.25 | 600 | – | – | – |
Available Products and Specifications
| Rod, Bar, Wire and Forgings | GB/T 15003-94, GB/T 32286.1-2015 |
| Plate, Sheet and Strip | GB/T 15003-94, GB/T 32286.1-2015 |
| Pipe and Tube | GB/T 15003-94, GB/T 32286.1-2015 |
| Welding Product | – |
| Others | – |
Features
In a relatively wide magnetic interpolation range, a certain wide temperature and frequency range, the permeability is basically unchanged.
Applications
Constant inductance coil and filter choke core, broadband transformer core and medium power monopole pulse transformer core.
