Material: Sintered Neodymium Iron Boron
Amazing Magnets has the ability to produce magnets in a variety of materials and grades. The majority of magnets sold and stocked at our facility are Sintered NdFeB (Grade N40), but other varieties are available, and can be produced in most combinations of materials with most sizes.
When selecting an NdFeB grade, keep in mind that the higher the grade (lower in the chart) the more brittle the magnets will be. Operating Temperatures are grouped by color for ease of reading. When selecting a working temperature, make sure you will not reach or exceed the Tmax value in the chart, or the magnets will be damaged.
| Grade | Br (KG) | Hcb (KOe) | Hci (KOe) | BHmax (MGOe) | Tmax |
| N35 | 11.7-12.2 | ≥10.9 | ≥12.0 | 33-36 | 80C / 176F |
| N38 | 12.2-12.5 | ≥10.9 | ≥12.0 | 36-39 | 80C / 176F |
| N40 | 12.5-12.8 | ≥11.4 | ≥12.0 | 38-41 | 80C / 176F |
| N42 | 12.8-13.2 | ≥11.5 | ≥12.0 | 40-43 | 80C / 176F |
| N45 | 13.2-13.8 | ≥11.6 | ≥12.0 | 43-46 | 80C / 176F |
| N48 | 13.8-14.2 | ≥11.6 | ≥12.0 | 46-49 | 80C / 176F |
| N50 | 14.0-14.5 | ≥10.0 | ≥11.0 | 48-51 | 70C / 158F |
| N52 | 14.3-14.8 | ≥10.0 | ≥11.0 | 50-53 | 70C / 158F |
| 30M | 10.8-11.3 | ≥ 10.0 | ≥ 14.0 | 28-31 | 100C / 212F |
| 33M | 11.3-11.7 | ≥10.5 | ≥14.0 | 31-33 | 100C / 212F |
| 35M | 11.7-12.2 | ≥10.9 | ≥14.0 | 33-36 | 100C / 212F |
| 38M | 12.2-12.5 | ≥11.3 | ≥14.0 | 36-39 | 100C / 212F |
| 40M | 12.5-12.8 | ≥11.6 | ≥14.0 | 38-41 | 100C / 212F |
| 42M | 12.8-13.2 | ≥12.0 | ≥14.0 | 40-43 | 100C / 212F |
| 45M | 13.2-13.8 | ≥12.5 | ≥14.0 | 43-46 | 100C / 212F |
| 48M | 13.6-14.3 | ≥12.9 | ≥14.0 | 46-49 | 100C / 212F |
| 50M | 14.0-14.5 | ≥13.0 | ≥14.0 | 48-51 | 100C / 212F |
| 30H | 10.8-11.3 | ≥10.0 | ≥17.0 | 28-31 | 120C / 248F |
| 33H | 11.3-11.7 | ≥10.5 | ≥17.0 | 31-34 | 120C / 248F |
| 35H | 11.7-12.2 | ≥10.9 | ≥17.0 | 33-36 | 120C / 248F |
| 38H | 12.2-12.5 | ≥11.3 | ≥17.0 | 36-39 | 120C / 248F |
| 40H | 12.5-12.8 | ≥11.6 | ≥17.0 | 38-41 | 120C / 248F |
| 42H | 12.8-13.2 | ≥12.0 | ≥17.0 | 40-43 | 120C / 248F |
| 45H | 13.2-13.8 | ≥12.0 | ≥17.0 | 43-46 | 120C / 248F |
| 48H | 13.7-14.3 | ≥12.5 | ≥17.0 | 46-49 | 120C / 248F |
| 30SH | 10.8-11.3 | ≥10.1 | ≥20.0 | 28-31 | 150C / 302F |
| 33SH | 11.3-11.7 | ≥10.6 | ≥20.0 | 31-34 | 150C / 302F |
| 35SH | 11.7-12.2 | ≥11.0 | ≥20.0 | 33-36 | 150C / 302F |
| 38SH | 12.2-12.5 | ≥11.4 | ≥20.0 | 36-39 | 150C / 302F |
| 40SH | 12.4-12.8 | ≥11.8 | ≥20.0 | 38-41 | 150C / 302F |
| 42SH | 12.8-13.2 | ≥12.4 | ≥20.0 | 40-43 | 150C / 302F |
| 45SH | 13.2-13.8 | ≥12.6 | ≥20.0 | 43-46 | 150C / 302F |
| 28UH | 10.2-10.8 | ≥9.6 | 25.0 | 26-29 | 180C / 356F |
| 30UH | 10.8-11.3 | ≥10.2 | ≥25.0 | 28-31 | 180C / 356F |
| 33UH | 11.3-11.7 | ≥10.7 | ≥25.0 | 31-34 | 180C / 356F |
| 35UH | 11.8-12.2 | ≥10.8 | ≥25.0 | 33-36 | 180C / 356F |
| 38UH | 12.2-12.5 | ≥11.3 | ≥25.0 | 36-39 | 180C / 356F |
| 40UH | 12.4-12.8 | ≥11.3 | ≥25.0 | 38-41 | 180C / 356F |
| 28EH | 10.4-10.9 | ≥9.8 | ≥30.0 | 26-29 | 200C / 392F |
| 30EH | 10.8-11.3 | ≥10.2 | ≥30.0 | 28-31 | 200C / 392F |
| 33EH | 11.3-11.7 | ≥10.5 | ≥30.0 | 31-34 | 200C / 392F |
| 35EH | 11.7-12.2 | ≥11.0 | ≥30.0 | 33-36 | 200C / 392F |
| 38EH | 12.2-12.5 | ≥11.3 | ≥30.0 | 36-39 | 200C / 392F |
Material: Bonded Neodymium Iron Boron
Bonded NdFeB lies between sintered NdFeB and ferrite in properties and is more stable. Bonded NdFeB is free from further machining and easy for pressing into different shapes like rings, arcs, etc. It also has a much higher corrosion resistance in comparison with sintered NdFeB. Bonded magnets offer less flux than sintered magnets but can be net-shape formed into intricately shaped parts and do not suffer significant eddy current losses.
| Grade | Br (KG) | Hcb (KOe) | Hci (KOe) | BHmax (MGOe) | Tmax |
| BDM-4 | 3.5-4.5 | 3.0-3.5 | 8-10 | 3-4 | 120C / 248F |
| BDM-6 | 5.0-6.0 | 4.0-4.5 | 8-10 | 5-7 | 120C / 248F |
| BDM-8 | 5.5-6.5 | 4.5-5.0 | 8-12 | 5-8.5 | 150C / 302F |
| BDM-10 | 6.5-7.0 | 5.0-5.5 | 8-12 | 9-10 | 150C / 302F |
| BDM-12 | 7.0-8.0 | 5.5-6.0 | 9-11 | 10-12 | 80C / 176F |
Material: Samarium Cobolt
SmCo magnet is a strong permanet magnet made of an alloy of samarium and cobalt. Comparing with the NdFeB magnet, SmCo magnet is weaker, but more suitable for working in high temperatures. SmCo magnets are very anti-corrosive and generally does not require electorplating treatment.
| Grade | Br (KG) | Hcb (KOe) | Hci (KOe) | BHmax (MGOe) | Tmax |
| YX18 | 8.5-9.0 | 7.8-8.2 | 15-19 | 16-18 | 250C / 482F |
| YX20 | 9.2-9.6 | 8.2-9.0 | 15-19 | 19-21 | 250C / 482F |
| YX24 | 9.6-10 | 9.2-9.7 | 15-19 | 22-24 | 250C / 482F |
| YXG24 | 9.5-10.2 | 8.0-9.2 | 18-25 | 22-24 | 300C / 572F |
| YXG26 | 10.2-10.5 | 9.4-10.0 | 18-25 | 24-26 | 300C / 572F |
| YXG28 | 10.5-10.8 | 9.5-10.0 | 18-25 | 26-28 | 300C / 572F |
| YXG28B | 10.2-11.0 | 5.2-6.5 | 5.5-6.5 | 26-28 | 300C / 572F |
| YXG28 | 10.8-11.0 | 9.8-10.5 | 18-25 | 28-30 | 300C / 572F |
| YXG30B | 10.8-11.0 | 5.2-5.6 | 5.5-6.5 | 28-30 | 300C / 572F |
Material: Alumium Nickel Cobolt
AlNiCo magnets are very stable and have good corrosion resistance and a typical hardness of 50 Rockwell C. AlNiCo represents the most versatile magnet material available. The range of properties can be accurately designed for specific applications by changes to element analysis and heat treatment.
| Grade | Br (KG) | Hcb (KOe) | Hci (KOe) | BHmax (MGOe) | Tmax |
| LN9 | 6.8 | 0.38 | | 1.13 | 450C / 842F |
| LN10 | 6.00 | 0.5 | | 1.20 | 450C / 842F |
| LNG12 | 7.20 | 0.5 | | 1.55 | 450C / 842F |
| LNG13 | 7.00 | 0.6 | | 1.60 | 450C / 842F |
| LNG34 | 12.00 | 0.6 | | 4.30 | 525C / 977F |
| LNG37 | 12.00 | 0.6 | | 4.65 | 525C / 977F |
| LNG40 | 12.5 | 0.6 | | 5.00 | 525C / 977F |
| LNG44 | 12.5 | 0.65 | | 5.50 | 525C / 977F |
| LNG52 | 13.0 | 0.7 | | 6.50 | 525C / 977F |
| LNGT28 | 10.0 | 0.72 | | 3.50 | 550C / 1022F |
| LNGT36J | 7.00 | 1.75 | | 4.50 | 550C / 1022F |
| LNGT32 | 8.0 | 1.25 | | 4.0 | 550C / 1022F |
| LNGT40 | 8.0 | 1.38 | | 5.0 | 550C / 1022F |
| LNGT60 | 9.00 | 1.38 | | 7.5 | 550C / 1022F |
| LNGT72 | 1.05 | 1.4 | | 9.0 | 550C / 1022F |
Material: Ferrite (Ceramic)
Ceramic, also known as Ferrite magents are made of a composite of iron oxide and barium/strontium carbonate by ceramic processing technology. Ferrites are, like most other ceramics, hard and brittle. In terms of the magnetic properties, ferrites are often classified as "soft" and "hard" which refers to their low or high coercivity of their magnetism, respectively.
| Grade | Br (KG) | Hcb (KOe) | Hci (KOe) | BHmax (MGOe) | Tmax |
| C1 | 2.3 | 1.86 | 3.5 | 1.05 | 460C / 860F |
| C5 | 3.8 | 2.4 | 2.5 | 3.4 | 460C / 860F |
| C7 | 3.4 | 3.23 | 4.00 | 2.75 | 460C / 860F |
| C8 | 3.85 | 2.95 | 3.05 | 3.5 | 460C / 860F |
| C8B | 4.2 | 2.913 | 2.96 | 4.12 | 460C / 860F |
| C9 | 3.8 | 3.516 | 4.01 | 3.32 | 460C / 860F |
| C10 | 4.0 | 3.617 | 3.51 | 3.82 | 460C / 860F |
| C11 | 4.3 | 2.512 | 2.56 | 4.32 | 460C / 860F |
Material: Flexible (Rubber)
Flexible Rubber magnets are made by mixing Ferrite or Neodymium magnet powders and synthetic or natural rubber binders. They are made by rolling (calendaring) or extrusion methods. Flexible magnets are applied because of their advantages of versatility, low cost, and ease of use. These magnets are usually manufactured in strip or sheet form that is widely used in micro-motors, gaskets, novelties, signs, and displays.
| Grade | Br (KG) | Hcb (KOe) | Hci (KOe) | BHmax (MGOe) | Tmax |
| FRM-5 | 1.55-1.75 | 1.25-1.45 | 1.55-1.75 | 0.60-0.70 | 80C / 176F |
| FRM-6 | 1.60-1.80 | 1.30-1.50 | 1.60-1.80 | 0.65-0.75 | 80C / 176F |
| FRM-8 | 2.15-2.25 | 1.60-1.80 | 1.90-2.10 | 0.95-1.05 | 80C / 176F |
| FRM-11 | 2.40-2.50 | 1.65-1.85 | 1.75-1.95 | 1.35-1.45 | 80C / 176F |
| FRM-12 | 2.45-2.50 | 2.00-2.20 | 2.70-2.90 | 1.45-1.55 | 80C / 176F |
