AlNiCo Magnet
AlNiCo Magnet Solutions
Alnico magnet is a type of permanent magnet produced with a pure combination of aluminum, iron, cobalt, nickel, and other elements’ content. These magnets are typically assembled in pieces of complex shapes or forms through the process casting or sintering method.
UPSUN's alnico magnets have the best temperature characteristics unmatched by any standard magnet. It can withstand continuous operation at temperatures up to 500°C. Additionally, these magnets are commonly used in a variety of projects that require high corrosion resistance.
Alnico Magnetic Properties Parameters
| Grade | US Standard | Br | Hcb | (BH)max | Tc | Tw | T.C.α(Br) | T.C.α(Hcj) |
|---|---|---|---|---|---|---|---|---|
| mT/Gs | kA/m /Oe | kJ/m3/MGOe | ℃ | ℃ | %/℃ | %/℃ | ||
| Typical Value | Typical Value | Typical Value | Typical Value | Typical Value | Typical Value | Typical Value | ||
| LN10 | ALNICO3 | 600/6000 | 40/500 | 10/1.25 | 750 | 550 | -0.02 | -0.03~-0.07 |
| LNG10 | 600/6000 | 44/550 | 10/1.25 | 750 | 550 | -0.02 | -0.03~-0.07 | |
| LNG12 | ALNICO2 | 700/7000 | 44/550 | 12/1.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
| LNG13 | 680/6800 | 48/600 | 13/1.63 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNG16 | ALNICO4 | 800/8000 | 48/600 | 16/2.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
| LNG18 | 900/9000 | 48/600 | 18/2.25 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNG37 | ALNICO5 | 1200/12000 | 48/600 | 37/4.63 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
| LNG40 | 1230/12300 | 48/600 | 40/5.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNG44 | 1250/12500 | 52/650 | 44/5.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNG48 | ALNICO5DG | 1280/12800 | 56/700 | 48/6.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
| LNG52 | 1300/13000 | 56/700 | 52/6.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNG56 | ALNICO5-7 | 1300/13000 | 58/720 | 56/7.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
| LNG60 | 1330/13300 | 60/750 | 60/7.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNGT28 | ALNICO6 | 1000/10000 | 56/700 | 28/3.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
| LNGT30 | 1100/11000 | 56/700 | 30/3.75 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNGT18 | ALNICO8 | 580/5800 | 80/1000 | 18/2.25 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
| LNGT32 | 800/8000 | 100/1250 | 32/4.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNGT38 | 800/8000 | 110/1380 | 38/4.75 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNGT44 | 850/8500 | 115/1450 | 44/5.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNGT48 | ALNICO8HE | 900/9000 | 120/1500 | 48/6.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
| LNGT60 | ALNICO9 | 900/9000 | 110/1380 | 60/7.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
| LNGT72 | 1050/10500 | 112/1400 | 72/9.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNGT80 | 1080/10800 | 120/1500 | 80/10.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNGT88 | 1100/11000 | 115/1450 | 88/11.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNGT96 | 1150/11500 | 118/1480 | 96/12.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNGT36J | ALNICO8HC | 700/7000 | 140/1750 | 36/4.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
| LNGT48J | 800/8000 | 145/1820 | 48/6.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| LNGT52J | 850/8500 | 140/1750 | 52/6.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
| Note: Curie temperature and temperature coefficient are only used as reference, not as judgment criteria. Customers have special requirements, can be customized according to customer requirements. | ||||||||
Alnico Magnets Features & Characteristics
✔ What are the main characteristics of alnico magnets? Alnico magnets offer high magnetic strength, energies but low coercivities. They are less brittle than Rare Earth magnets, are highly resistant to corrosion, have excellent temperature stability and can be used at very high temperatures. Manufactured through either a casting or sintering process, they can be made into complex shapes (such as horseshoe shapes) that are not possible with other magnet materials.
✔ What grades & shapes are available for alnico magnets? Grades 5 and 8 are the most commonly used Alnico grades. Non-standard shapes can be custom fabricated to blueprint specifications from raw stock in sintered, or cast forms, & we can custom manufacture virtually any shape & size to meet your specialty requirements. Send us a request for quote, and we'll work with you to determine the most economical way to manufacture your specialty project.
✔ Are there machining constraints for alnico magnets? Alnico magnets are hard and brittle, and prone to chipping & cracking. They require very careful machining & it is not generally recommended that these materials be used for structural or decorative purposes. Machining or drilling cannot be accomplished by ordinary methods. Cutting & grinding should be done prior to magnetizing. Holes must be made by EDM methods. We are fully equipped to machine these materials to your blueprint specifications.
✔ What are some common applications for alnico magnets? Instrumentation, meters, microwave devices, actuators, holding devices, sensors, are among the most common applications for Alnico magnets.
✔ Do alnico magnets require surface treatments? Alnico magnets do not typically require a protective coating or plating since they exhibit excellent resistance to corrosion.
✔ What are some safety precautions that should be taken into consideration when working with alnico magnets? Special care should be taken to assure that these magnets are not subjected to adverse repelling fields, since these could partially demagnetize the magnets. If Alnicos are partially demagnetized, they may be easily re-magnetized.
