Product Details:
Alnico magnets are made primarily from aluminum, nickel, cobalt, copper, iron and sometimes titanium. Among all the available magnetic materials, they have high magnetic flux density, resistance to corrosion and excellent temperature stability, the maximum working temperature up to 600℃. Alnico magnet is widely used in all kinds of sensors and meters, electronics, instruments, medical instruments, teaching, automobile, aviation, martial and other applications.
There are two different manufacturing process for Alnico: Cast and Sintered Alnico. Cast Alnico can be made into intricate and complex shapes, which is not possible with other magnetic materials. Sintered Alnico is manufactured using a powder metallurgy process. while slightly weaker than cast alnico, It exhibits superior mechanical characteristics .
Magnetic Feature: 1) Material: Aluminum, nickel, cobalt and iron with varying additions of other elements; 2) Temperature: The max operation temp is up to 200 degree centigrade or 380 curie temperature; 3) Grade: AlNiCo3, AlNiCo5 AlNiCo8 AlNiCo10and so on. 4) Shape: Ring, block, disc, bar and so on; 5) Size: According to customers' request; 6) Coating: Colour of metal casting 7) According to customer's request. We can supply different size magnetic hook. 8) Good quality with competitive price and best delivery date. 9) Application: Sensors, motors, rotors, wind turbines, wind generators, loudspeakers, magnetic holder, filters automobiles and so on. 10) Certificate: SGS test report | Physical Properties of Cast Alnico |
| Curie Temperature (℃) | 760-890 |
| Max. Operating Temperature (℃) | 450-550 |
| Resistivity (μohm.cm) | 47-54 |
| Hardness (Hv) | 520-630 |
| Density (g/cm³) | 6.90-7.30 |
| Relative Recoil Permeability (μrec) | 1.70-4.70 |
| Saturation Field Strength (kOe,kA/m) | 2.7-6.3/215-500 |
| Temperature Coefficient of Br (%/℃) | -0.025 ~ -0.02 |
| Temperature Coefficient of iHc (%/℃) | +0.01 ~ +0.03 |
Typical Magnetic Properties | Grade | MMPA Equivalent | Br | Hcb | Hcj | (BH)max | Remark |
| mT | Gs | kA/m | Oe | kA/m | Oe | kJ/m3 | MGOe |
| LN10 | Alnico3 | 600 | 6000 | 40 | 500 | 43 | 540 | 10 | 1.20 | Isotropic |
| LNG13 | Alnico2 | 680 | 6800 | 48 | 600 | 51 | 640 | 13 | 1.60 |
| LNGT18 | Alnico8 | 580 | 5800 | 90 | 1130 | 92 | 1160 | 18 | 2.20 |
| LNG37 | Alnico5 | 1200 | 12000 | 48 | 600 | 49 | 610 | 37 | 4.65 | Anisotropic |
| LNG40 | 1250 | 12500 | 48 | 600 | 49 | 610 | 40 | 5.00 |
| LNG44 | 1250 | 12500 | 52 | 650 | 53 | 660 | 44 | 5.50 |
| LNG52 | Alnico5DG | 1300 | 13000 | 56 | 700 | 57 | 710 | 52 | 6.50 |
| LNG60 | Alnico5-7 | 1350 | 13500 | 59 | 740 | 60 | 750 | 60 | 7.50 |
| LNGT28 | Alnico6 | 1000 | 10000 | 58 | 720 | 59 | 740 | 28 | 3.50 |
| LNGT36J | Alnico8HC | 700 | 7000 | 140 | 1750 | 148 | 1850 | 36 | 4.50 |
| LNGT38 | Alnico8 | 800 | 8000 | 110 | 1380 | 112 | 1400 | 38 | 4.75 |
| LNGT44 | 880 | 8800 | 120 | 1500 | 122 | 1530 | 44 | 5.50 |
| LNGT60 | Alnico9 | 900 | 9000 | 110 | 1380 | 112 | 1400 | 60 | 7.50 |
| LNGT72 | 1050 | 10500 | 112 | 1400 | 114 | 1430 | 72 | 9.00 |
Cast Alnico Process Chart
Raw material -> forming- >smelting-> heat treatment-> surface treatment->precision grinding->inspection ->packing
Sintered Alnico Process Chart
Raw material ->powder-> forming-> sintered- >heat treatment-> surface treatment->precision grinding –>inspection- >packing 
