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Phone:022-87897560
Mobile: 13512985509
Email:info@north-magnet.cc
Fax: 022-87897562
Address: Floor 5, No. 4, Xinxing Park, Houtai Industrial Park, Xiqing District, Tianjin City
Alnico
Product Introduction:
Alnico is one of the earliest developed permanent magnetic materials, an alloy composed of aluminum, nickel, cobalt, iron, and other trace metallic elements. Depending on the manufacturing process, it is classified into sintered alnico and cast alnico. Products typically come in circular or square shapes. Cast alnico can be machined into a wide variety of sizes and geometries; in contrast, sintered alnico is limited to smaller dimensions, with tighter dimensional tolerances in its green‑state blanks compared to cast blanks. While its magnetic properties are slightly inferior to those of cast alnico, it offers superior machinability. Among permanent magnetic materials, cast alnico boasts the lowest reversible temperature coefficient, enabling service temperatures exceeding 600°C. Alnico permanent magnets are widely used in various instruments, meters, and other application areas.
Product Features:
| Manufactured by casting or powder metallurgy. | Made of Al-Ni-Fe-Co |
| Extremely hard and brittle | Low magnetic resistance performance |
| Typical cost/performance ratio | Better temperature stability |
Alnico Magnetic Property Parameters
| Level | Remanent magnetic flux density Br | Coercive force Hcb | Maximum magnetic energy product (BH)max | Tc. | Tw. | aBr | MMPA Equivalent | International Standard | German standard | |||
| mT | Gs | KA/m | Oe | Kj/m3 | MGOe | [°C] | [°C] | [%°C] | ||||
| *LN9 | 690 | 6900 | 37 | 470 | 9 | 1.13 | 760 | 500 | -0.03 | Alnico3 | Alnico9/4 | Alnico120 |
| *LN10 | 600 | 6000 | 40 | 500 | 10 | 1.25 | 760 | 500 | -0.03 | |||
| *LNG12 | 720 | 7200 | 44 | 550 | 12 | 1.5 | 810 | 500 | -0.03 | Alnico2 | Alnico12/6 | Alnico160 |
| *LNG13 | 700 | 7000 | 48 | 600 | 13 | 1.63 | 810 | 500 | -0.03 | |||
| LNG16 | 800 | 8000 | 53 | 660 | 16 | 2 | 850 | 500 | -0.02 | Alnico4 | / | / |
| LNG18 | 1050 | 10500 | 48 | 600 | 30 | 3.75 | 850 | 500 | -0.02 | |||
| LNG32 | 1180 | 11800 | 44 | 550 | 32 | 4 | 890 | 500 | -0.02 | Alnico5C | / | Alnico500 |
| LNG34 | 1180 | 11800 | 44 | 550 | 34 | 4.25 | 890 | 500 | -0.02 | |||
| LNG37 | 1200 | 12000 | 48 | 600 | 37 | 4.65 | 890 | 500 | -0.02 | Alnico 5 | Alnico37/5 | Alnico500 |
| LNG40 | 1250 | 12500 | 48 | 600 | 40 | 5 | 890 | 500 | -0.02 | / | ||
| LNG44 | 1250 | 12500 | 52 | 650 | 44 | 5.5 | 890 | 500 | -0.02 | Alnico44/5 | ||
| LNG48 | 1250 | 12500 | 52 | 650 | 48 | 6 | 890 | 500 | -0.02 | Alnico 5DG | Alnico52/6 | Alnico 600GD |
| LNG52 | 1300 | 13000 | 56 | 700 | 52 | 6.5 | 890 | 500 | -0.02 | |||
| LNG60 | 1350 | 13500 | 56 | 700 | 60 | 7.5 | 890 | 500 | -0.02 | Alnico 5–7 | / | Alnico700 |
| LNGT28 | 1050 | 10500 | 56 | 700 | 28 | 3.5 | 860 | 500 | -0.02 | Alnico6 | Alnico26/6 | Alnico400 |
| *LNGT18 | 580 | 5800 | 90 | 1130 | 18 | 2.2 | 860 | 500 | -0.03 | Alnico 7 | Alnico17/9 | Alnico260 |
| LNGT32 | 800 | 8000 | 100 | 1250 | 32 | 4.25 | 860 | 500 | -0.03 | Alnico 8 | / | Alnico350 |
| LNGT34 | 800 | 8000 | 104 | 1300 | 34 | 4.25 | 860 | 500 | -0.03 | |||
| LNGT38 | 820 | 8200 | 110 | 1380 | 38 | 4.75 | 860 | 500 | -0.03 | Alnico38/11 | Alnico450 | |
| LNGT44 | 880 | 8800 | 120 | 1500 | 44 | 5.5 | 860 | 500 | -0.03 | / | ||
| LNGT48 | 900 | 9000 | 120 | 1500 | 48 | 6 | 860 | 500 | -0.03 | |||
| LNGT60 | 900 | 9000 | 110 | 1380 | 60 | 7.5 | 860 | 500 | -0.03 | Alnico 9 | Alnico60/11 | / |
| LNGT72 | 1050 | 1050 | 112 | 1410 | 72 | 9 | 860 | 500 | -0.03 | / | ||
| LNGT82 | 1100 | 11000 | 120 | 1500 | 82 | 10.25 | 860 | 500 | -0.03 | |||
| LNGT88 | 1100 | 11000 | 120 | 1500 | 88 | 11 | 860 | 500 | -0.03 | / | ||
| LNGT92 | 1120 | 11200 | 120 | 1500 | 92 | 11.5 | 860 | 500 | -0.03 | |||
| LNGT36J | 700 | 7000 | 140 | 1750 | 36 | 4.5 | 860 | 500 | -0.03 | Alnico8HC | Alnico36/15 | Alnico450 |
Line chart

Production process

Application areas
