Performance Parameters of Neodymium Magnets

GradeBrHcJHcB(BH)maxHk / HcJaOperating
Temp.
Curie
Temp.
kGsTkOekA/mkOekA/mMGOekJ/m3%°C°C
MinMinMinMinMinMinMinMaxMinMaxMaxMax
N3511.81.181296010.886033362632879580310
N3812.31.231296010.886036392873109580310
N4012.61.261296010.886038413023269580310
N4212.91.291296010.886040433183429580310
N4513.31.331296010.886043463423669580310
N4813.71.371296010.583645493583909580310
N5013.91.391296010.583647513744069580310
N5214.21.421296010.583649533904229580310
N5414.51.451187510.583651554064389580310
N35M11.81.1814111410.8860333626328795100310
N38M12.31.2314111411.0876363928731095100310
N40M12.61.2614111411.4910384130232695100310
N42M12.91.2914111411.8938404331834295100310
N45M13.31.3314111412.2971434634236695100310
N48M13.71.3714111412.71012454935839095100310
N50M13.91.3914111413.01035475137440695100310
N52M14.21.4213103512.5995495339042295100310
N33H11.41.1417135310.6844313424727195120310
N35H11.81.1817135311.0876333626328795120310
N38H12.31.2317135311.4910363928731095120310
N40H12.61.2617135311.7930384130232695120310
N42H12.91.2917135312.0957404331834295120310
N45H13.31.3317135312.5995434634236695120310
N48H13.71.3716127412.81000454935839095120310
N50H13.91.3916127413.01035475137440695120310
N33SH11.41.1420159210.5836313424727190150320
N35SH11.81.1820159211.0876333626328790150320
N38SH12.31.2320159211.1886363928731090150320
N40SH12.61.2620159211.5912384130232690150320
N42SH12.91.2920159211.8938404331834290150320
N45SH13.31.3320159211.8938434634236690150320
N48SH13.71.3719151212.81035454935839090150320
N30UH10.81.082519909.50756283122324790180330
N33UH11.41.1425199010.3816313424727190180330
N35UH11.81.1825199010.6845333626328790180330
N38UH12.31.2325199011.1886363928731090180330
N40UH12.61.2625199011.5912384130232690180330
N42UH12.91.2925199011.8938404331834290180330
N45UH13.31.3324191112.2976434634236690180330
N28EH10.51.053023889.50756262920723190200330
N30EH10.81.083023889.50756283122324790200330
N33EH11.41.1430238810.3816313424727190200330
N35EH11.81.1830238811.1883333626328790200330
N38EH12.21.2230238811.6923363928731090200330
N40EH12.51.2530238811.9947384130232690200330
N42EH12.81.2829230812.0971404331834290200330
N28AH10.51.053527869.50756262920723190230350
N30AH10.81.0835278610.1804283122324790230350
N33AH11.41.1435278610.2816313424727190230350
N35AH11.81.1835278610.6845333626328790230350
N38AH12.21.2233262711.6923363928731090230350
GradeBrHcJHcB(BH)maxOperating Temperature
N35>1.18T>12kOe>10.8kOe33~36MGOe<80°C
N38>1.23T>12kOe>10.8kOe36~39MGOe<80°C
N40>1.26T>12kOe>10.8kOe38~41MGOe<80°C
N42>1.29T>12kOe>10.8kOe40~43MGOe<80°C
N45>1.33T>12kOe>10.8kOe43~46MGOe<80°C
N48>1.37T>12kOe>10.5kOe45~49MGOe<80°C
N50>1.39T>12kOe>10.5kOe47~51MGOe<80°C
N52>1.42T>12kOe>10.5kOe49~53MGOe<80°C
N54>1.45T>11kOe>10.5kOe51~55MGOe<80°C
N35M>1.18T>14kOe>10.8kOe33~36MGOe<100°C
N38M>1.23T>14kOe>11.0kOe36~39MGOe<100°C
N40M>1.26T>14kOe>11.4kOe38~41MGOe<100°C
N42M>1.29T>14kOe>11.8kOe40~43MGOe<100°C
N45M>1.33T>14kOe>12.2kOe43~46MGOe<100°C
N48M>1.37T>14kOe>12.7kOe45~49MGOe<100°C
N50M>1.39T>14kOe>13.0kOe47~51MGOe<100°C
N52M>1.42T>13kOe>12.5kOe49~53MGOe<100°C
N33H>1.14T>17kOe>10.6kOe31~34MGOe<120°C
N35H>1.18T>17kOe>11.0kOe33~36MGOe<120°C
N38H>1.23T>17kOe>11.4kOe36~39MGOe<120°C
N40H>1.26T>17kOe>11.7kOe38~41MGOe<120°C
N42H>1.29T>17kOe>12.0kOe40~43MGOe<120°C
N45H>1.33T>17kOe>12.5kOe43~46MGOe<120°C
N48H>1.37T>16kOe>12.8kOe45~49MGOe<120°C
N50H>1.39T>16kOe>13.0kOe47~51MGOe<120°C
N33SH>1.14T>20kOe>10.5kOe31~34MGOe<150°C
N35SH>1.18T>20kOe>11.0kOe33~36MGOe<150°C
N38SH>1.23T>20kOe>11.1kOe36~39MGOe<150°C
N40SH>1.26T>20kOe>11.5kOe38~41MGOe<150°C
N42SH>1.29T>20kOe>11.8kOe40~43MGOe<150°C
N45SH>1.33T>20kOe>11.8kOe43~46MGOe<150°C
N48SH>1.37T>19kOe>12.8kOe45~49MGOe<150°C
N30UH>1.08T>25kOe>9.5kOe28~31MGOe<180°C
N33UH>1.14T>25kOe>10.3kOe31~34MGOe<180°C
N35UH>1.18T>25kOe>10.6kOe33~36MGOe<180°C
N38UH>1.23T>25kOe>11.1kOe36~39MGOe<180°C
N40UH>1.26T>25kOe>11.5kOe38~41MGOe<180°C
N42UH>1.29T>25kOe>11.8kOe40~43MGOe<180°C
N45UH>1.33T>24kOe>12.2kOe43~46MGOe<180°C
N28EH>1.05T>30kOe>9.5kOe26~29MGOe<200°C
N30EH>1.08T>30kOe>9.5kOe28~31MGOe<200°C
N33EH>1.14T>30kOe>10.3kOe31~34MGOe<200°C
N35EH>1.18T>30kOe>11.1kOe33~36MGOe<200°C
N38EH>1.22T>30kOe>11.6kOe36~39MGOe<200°C
N40EH>1.25T>30kOe>11.9kOe38~41MGOe<200°C
N42EH>1.28T>29kOe>12.0kOe40~43MGOe<200°C
N28AH>1.05T>35kOe>9.5kOe26~29MGOe<230°C
N30AH>1.08T>35kOe>10.1kOe28~31MGOe<230°C
N33AH>1.14T>35kOe>10.2kOe31~34MGOe<230°C
N35AH>1.18T>35kOe>10.6kOe33~36MGOe<230°C
N38AH>1.22T>33kOe>11.6kOe36~39MGOe<230°C

Remarks:  1 T = 10 kGs    1 kA/m = 4π×10-3 kOe    1 kJ/m3 = 4π×10-2 MGOe

Remanence Temperature Coefficient

SeriesTemperature RangeReference Range (%/℃)
N20℃ ~ 100℃-0.70 ~ -0.82
M20℃ ~ 100℃-0.65 ~ -0.80
H20℃ ~ 100℃-0.65 ~ -0.75
SH20℃ ~ 100℃-0.55 ~ -0.70
20℃ ~ 150℃-0.50 ~ -0.65
UH20℃ ~ 100℃-0.53 ~ -0.66
20℃ ~ 180℃-0.48 ~ -0.61
EH20℃ ~ 100℃-0.50 ~ -0.62
20℃ ~ 200℃-0.46 ~ -0.58
AH20℃ ~ 100℃-0.47 ~ -0.60
20℃ ~ 200℃-0.45 ~ -0.56

Intrinsic Coercivity Temperature Coefficient

SeriesTemperature RangeReference Range (%/℃)
N20℃ ~ 100℃-0.70 ~ -0.82
M20℃ ~ 100℃-0.65 ~ -0.80
H20℃ ~ 100℃-0.65 ~ -0.75
SH20℃ ~ 100℃-0.55 ~ -0.70
20℃ ~ 150℃-0.50 ~ -0.65
UH20℃ ~ 100℃-0.53 ~ -0.66
20℃ ~ 180℃-0.48 ~ -0.61
EH20℃ ~ 100℃-0.50 ~ -0.62
20℃ ~ 200℃-0.46 ~ -0.58
AH20℃ ~ 100℃-0.47 ~ -0.60
20℃ ~ 200℃-0.45 ~ -0.56

Mechanical Physical Properties of Neodymium Magnets

PropertyUnitReference Range
Densityg/cm37.40 ~ 7.70
Vickness HardnessHV500 ~ 700
Compressive StrengthMPa1000 ~ 1100
Tensile StrengthMPa80 ~ 90
Bending StrengthMPa150 ~ 400
Thermal ConductivityW/(m·K)8 ~ 10
Young's ModulusGpa150 ~ 200
Electrical Resistivity C∥ (20℃)μΩ·m1.4 ~ 1.6
Electrical Resistivity C⊥ (20℃)μΩ·m1.2 ~ 1.4
Coefficient of Thermal Expansion C∥ (20℃ ~ 100℃)10-6/K4 ~ 9
Coefficient of Thermal Expansion C⊥ (20℃ ~ 100℃)10-6/K-2 ~ 10

Remarks:  C∥ indicates the direction of magnetization , C⊥ indicates the direction of perpendicular magnetization.