Neodymium Magnet Property Specifications
The magnetic properties of materials are standardized for each grade. These values are determined by inspecting and measuring a base material sample (with a height-to-diameter ratio of 0.7) using a BH analyzer before any cutting occurs. After the base material is cut, the magnetic properties of the final magnet will differ from the initial measurements, as they are influenced by the shape ratio and environmental temperature. Please note that the information provided is subject to change without notice due to improvements or other reasons.
| material symbol | residual magnetic flux density | coercive force | coercive force | maximum energy product | temperature coefficient | Heat-resistant working temperature |
curie temperature |
||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Grade | Br | Hcb | Hcj | (BG)max | αBr %/℃ |
Working Temp ℃(H/D=0.7) |
Curie Temp |
||||
| kg | mT | kOe | kA/m | kOe | kA/m | MGOe | kJ/m3 | ||||
| 27 | 10.3-10.8 | 1030-1080 | ≧10.0 | ≧796 | ≧12 | ≧955 | 25-29 | 199-231 | -0.12 | ≦80 | 310 |
| 30 | 10.8-11.3 | 1080-1130 | ≧10.0 | ≧796 | ≧12 | ≧955 | 28-31 | 223-247 | -0.12 | ≦80 | 310 |
| 33 | 11.7-12.2 | 1130-1170 | ≧10.5 | ≧836 | ≧12 | ≧955 | 31-34 | 247-271 | -0.12 | ≦80 | 310 |
| 35 | 11.7-12.2 | 1170-1220 | ≧10.9 | ≧868 | ≧12 | ≧955 | 33-36 | 263-287 | -0.12 | ≦80 | 310 |
| 38 | 12.2-12.5 | 1220-1250 | ≧11.3 | ≧899 | ≧12 | ≧955 | 36-39 | 287-310 | -0.12 | ≦80 | 310 |
| 40 | 12.5-12.8 | 1250-1280 | ≧11.4 | ≧907 | ≧12 | ≧955 | 38-41 | 302-326 | -0.12 | ≦80 | 310 |
| 42 | 12.8-13.2 | 1280-1320 | ≧11.5 | ≧915 | ≧12 | ≧955 | 40-43 | 318-342 | -0.12 | ≦80 | 310 |
| 45 | 13.2-13.8 | 1320-1380 | ≧11.6 | ≧923 | ≧12 | ≧955 | 43-46 | 342-366 | -0.12 | ≦80 | 310 |
| 48 | 13.8-14.2 | 1380-1420 | ≧11.6 | ≧923 | ≧12 | ≧955 | 46-49 | 366-390 | -0.12 | ≦80 | 310 |
| 50 | 14.0-14.5 | 1400-1450 | ≧10.0 | ≧796 | ≧11 | ≧876 | 48-51 | 382-406 | -0.12 | ≦60 | 310 |
| 52 | 14.3-14.8 | 1430-1480 | ≧10.0 | ≧796 | ≧11 | ≧876 | 50-53 | 398-422 | -0.12 | ≦60 | 310 |
| 30M | 10.8-11.3 | 1080-1130 | ≧10.0 | ≧796 | ≧14 | ≧1114 | 28-31 | 223-247 | -0.12 | ≦100 | 340 |
| 33M | 11.3-11.7 | 1130-1170 | ≧10.5 | ≧836 | ≧14 | ≧1114 | 31-33 | 247-263 | -0.12 | ≦100 | 340 |
| 35M | 11.7-12.2 | 1170-1220 | ≧10.9 | ≧868 | ≧14 | ≧1114 | 33-36 | 263-287 | -0.12 | ≦100 | 340 |
| 38M | 12.2-12.5 | 1220-1250 | ≧11.3 | ≧899 | ≧14 | ≧1114 | 36-39 | 287-310 | -0.12 | ≦100 | 340 |
| 40M | 12.5-12.8 | 1250-1280 | ≧11.6 | ≧923 | ≧14 | ≧1114 | 38-41 | 302-326 | -0.12 | ≦100 | 340 |
| 42M | 12.8-13.2 | 1280-1320 | ≧12.0 | ≧955 | ≧14 | ≧1114 | 40-43 | 318-342 | -0.12 | ≦100 | 340 |
| 45M | 13.2-13.8 | 1320-1380 | ≧12.5 | ≧955 | ≧14 | ≧1114 | 43-46 | 342-366 | -0.12 | ≦100 | 340 |
| 48M | 13.6-14.3 | 1360-1430 | ≧12.9 | ≧1027 | ≧14 | ≧1114 | 46-49 | 366-390 | -0.12 | ≦100 | 340 |
| 50M | 14.0-14.5 | 1400-1450 | ≧13.0 | ≧1033 | ≧14 | ≧1114 | 48-51 | 382-406 | -0.12 | ≦100 | 340 |
| 30H | 10.8-11.3 | 1080-1130 | ≧10.0 | ≧796 | ≧17 | ≧1353 | 28-31 | 223-247 | -0.11 | ≦100 | 340 |
| 33H | 11.3-11.7 | 1130-1170 | ≧10.5 | ≧836 | ≧17 | ≧1353 | 31-34 | 247-271 | -0.11 | ≦120 | 340 |
| 35H | 11.7-12.2 | 1170-1220 | ≧10.9 | ≧868 | ≧17 | ≧1353 | 33-36 | 263-287 | -0.11 | ≦120 | 340 |
| 38H | 12.2-12.5 | 1220-1250 | ≧11.3 | ≧899 | ≧17 | ≧1353 | 36-39 | 287-310 | -0.11 | ≦120 | 340 |
| 40H | 12.5-12.8 | 1250-1280 | ≧11.6 | ≧923 | ≧17 | ≧1353 | 38-41 | 302-326 | -0.11 | ≦120 | 340 |
| 42H | 12.8-13.2 | 1280-1320 | ≧12.0 | ≧955 | ≧17 | ≧1353 | 40-43 | 318-342 | -0.11 | ≦120 | 340 |
| 45H | 13.0-13.6 | 1300-1360 | ≧12.1 | ≧963 | ≧17 | ≧1353 | 43-46 | 342-366 | -0.11 | ≦120 | 340 |
| 48H | 13.7-14.3 | 1370-1430 | ≧12.5 | ≧995 | ≧17 | ≧1353 | 46-49 | 366-390 | -0.11 | ≦120 | 340 |
| 30SH | 10.8-11.3 | 1080-1130 | ≧10.1 | ≧804 | ≧20 | ≧1592 | 28-31 | 223-247 | -0.1 | ≦150 | 340 |
| 33SH | 11.3-11.7 | 1130-1170 | ≧10.6 | ≧844 | ≧20 | ≧1592 | 31-34 | 247-271 | -0.1 | ≦150 | 340 |
| 35SH | 11.7-12.2 | 1170-1220 | ≧11.0 | ≧876 | ≧20 | ≧1592 | 33-36 | 263-287 | -0.1 | ≦150 | 340 |
| 38SH | 12.2-12.5 | 1220-1250 | ≧11.4 | ≧907 | ≧20 | ≧1592 | 36-39 | 287-310 | -0.1 | ≦150 | 340 |
| 40SH | 12.4-12.8 | 1240-1280 | ≧11.8 | ≧939 | ≧20 | ≧1592 | 38-41 | 302-326 | -0.1 | ≦150 | 340 |
| 42SH | 12.8-13.2 | 1280-1320 | ≧12.4 | ≧987 | ≧20 | ≧1592 | 40-43 | 318-342 | -0.1 | ≦150 | 340 |
| 45SH | 13.2-13.8 | 1320-1380 | ≧12.6 | ≧1003 | ≧20 | ≧1592 | 43-46 | 342-366 | -0.1 | ≦150 | 340 |
| 28UH | 10.2-10.8 | 1020-1080 | ≧9.6 | ≧764 | ≧25 | ≧1990 | 26-29 | 207-231 | -0.1 | ≦180 | 350 |
| 30UH | 10.8-11.3 | 1080-1130 | ≧10.2 | ≧812 | ≧25 | ≧1990 | 28-31 | 223-247 | -0.1 | ≦180 | 350 |
| 33UH | 11.3-11.7 | 1130-1170 | ≧10.7 | ≧852 | ≧25 | ≧1990 | 31-34 | 247-271 | -0.1 | ≦180 | 350 |
| 35UH | 11.8-12.2 | 1180-1220 | ≧10.8 | ≧860 | ≧25 | ≧1990 | 33-36 | 263-287 | -0.1 | ≦180 | 350 |
| 38UH | 12.2-12.5 | 1220-1250 | ≧11.0 | ≧876 | ≧25 | ≧1990 | 36-39 | 287-310 | -0.1 | ≦180 | 350 |
| 40UH | 12.5-12.8 | 1250-1280 | ≧11.3 | ≧899 | ≧25 | ≧1990 | 38-41 | 302-326 | -0.1 | ≦180 | 350 |
| 28EH | 10.4-10.9 | 1040-1090 | ≧9.8 | ≧780 | ≧30 | ≧2388 | 26-29 | 207-231 | -0.1 | ≦200 | 350 |
| 30EH | 10.8-11.3 | 1080-1130 | ≧10.2 | ≧812 | ≧30 | ≧2388 | 28-31 | 223-247 | -0.1 | ≦200 | 350 |
| 33EH | 11.4-11.7 | 1140-1170 | ≧10.5 | ≧836 | ≧30 | ≧2388 | 31-34 | 247-271 | -0.1 | ≦200 | 350 |
| 35EH | 11.7-12.2 | 1170-1220 | ≧11.0 | ≧876 | ≧30 | ≧2388 | 33-36 | 263-287 | -0.1 | ≦200 | 350 |
| 38EH | 12.2-12.5 | 1220-1250 | ≧11.3 | ≧899 | ≧30 | ≧2388 | 36-39 | 287-310 | -0.1 | ≦200 | 350 |
| 28AH | 10.4-10.9 | 1040-1090 | ≧9.9 | ≧787 | ≧30 | ≧2624 | 26-29 | 207-231 | -0.09 | ≦230 | 400 |
| 30AH | 10.8-11.3 | 1080-1130 | ≧10.3 | ≧819 | ≧30 | ≧2624 | 28-31 | 223-247 | -0.09 | ≦230 | 400 |
| 33AH | 11.3-11.7 | 1130-1170 | ≧10.6 | ≧843 | ≧30 | ≧2624 | 31-34 | 247-271 | -0.09 | ≦230 | 400 |
