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Cast AlNiCo Magnets
Cast AlNiCo Magnets (powerful magnet, magnet ring, magnet tiles, block magnets, magnet cylinder, ball magnets , horseshoe magnets)
Alnico magnets are made primarily from aluminum, nickel, cobalt, copper, iron and sometimes titanium, 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. It is high magnetic flux density, resistance to corrosion and excellent temperature stability, the maximum working temperature up to 600℃. Cast Alnico magnet is widely used in all kinds of sensors and meters, electronics, instruments, medical instruments, teaching, automobile, aviation, martial and other applications.
Process Flow:Raw Material-----Mixing---Melting-----Heat Treatment-----Magnetic Testing----Grinding-----Inspection-----Packing and Shipping
MAGNETIC AND PHYSICAL PROPERTIES OF CAST ALNICO MAGNET
Material Grade | LN10 | LNG13 | LNGT18 | LNG37 | LNG40 | LNG44 | LNG52 | LNG60 | LNGT28 | |
Equivalent MMPA Class | ALNICO3 | ALNICO2 | ALNICO8 | ALNICO5 | ALNIC05DG | ALNICO5-7 | ALNICO6 | |||
Br | mT | 600 | 700 | 580 | 1200 | 1250 | 1250 | 1300 | 1350 | 1000 |
Gs | 6000 | 7000 | 5800 | 12000 | 12500 | 12500 | 13000 | 13500 | 10000 | |
Hc | KA/m | 40 | 48 | 100 | 48 | 48 | 52 | 56 | 59 | 57.6 |
Oe | 500 | 600 | 1250 | 600 | 600 | 650 | 700 | 740 | 720 | |
(BH)max | KJ/m3 | 10 | 12.8 | 18 | 37 | 40 | 44 | 52 | 60 | 28 |
MGOe | 1.2 | 1.6 | 2.2 | 4.65 | 5 | 5.5 | 6.5 | 7.5 | 3.5 | |
Density | g/cm3 | 6.9 | 7.2 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 |
Temper- ature Coef- ficient |
Near Br %/K | -0.03 | -0.03 | -0.025 | -0.02 | -0.02 | ||||
Near Hcj %/K | -0.02 | -0.02 | +0.02 | +0.02 | +0.03 | |||||
Curie Tempe rature Tc |
℃ | 810 | 810 | 860 | 850 | 850 | ||||
Maximum Working Tempe- rature Tw |
℃ | 450 | 450 | 550 | 525 | 525 | ||||
Remark | Isotropy | Anisotropy |
Material Grade | LNGT28 | LNGT36J | LNGT38 | LNGT40 | LNGT60 | LNGT72 | ||
Equivalent MMPA Class | ALNICO6 | ALNICO8HC | ALNICO8 | ALNICO9 | ||||
Br | mT | 1000 | 700 | 800 | 820 | 900 | 1050 | |
Gs | 10000 | 7000 | 8000 | 8200 | 9000 | 10500 | ||
Hc | KA/m | 57.6 | 140 | 110 | 110 | 110 | 112 | |
Oe | 720 | 1750 | 1380 | 1380 | 1380 | 1400 | ||
(BH)max | KJ/m3 | 28 | 36 | 38 | 40 | 60 | 72 | |
MGOe | 3.5 | 4.5 | 4.75 | 5 | 7.5 | 9 | ||
Density | g/cm3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | 7.3 | |
Temperature Coefficient | Near Br %/K | -0.02 | -0.025 | -0.025 | -0.025 | -0.025 | -0.025 | |
Near Hcj %/K | +0.03 | +0.02 | +0.02 | +0.02 | +0.02 | +0.02 | ||
Curie | Temperature Tc | ℃ | 850 | 860 | 860 | 860 | 860 | 860 |
Maximum Working Temperature Tw | ℃ | 525 | 550 | 550 | 550 | 550 | 550 | |
Remark | Anisotropy |