For product technical information, pricing and availability contact our sales department at:
(219) 548-3799
[email protected]
Neodymium Magnets, also known as NdFeB or simply Neo, are the most commonly used magnet materials for high tech motors and sensors. After being introduced in the mid 1980’s they have rapidly gained market share due to their high magnetic strength and resistance to demagnetization. They do not have the high temperature resistance of other magnet materials, however they can be used in applications with maximum operating temperatures of 220 C. Because of a high iron content, they will corrode over time if not plated or coated. As with all magnet materials, NdFeB should never be used as a structural element in an application.
| Alliance NdFeB Grades | Remanent Induction | Coercive Force | Intrinsic Coercive Force | Maximum Energy Product | Reversible Temperature Coefficients | Continuous Working Temp. | |||||
| Br (Gauss) | Hc (Oe) | Hci (Oe) | (BH)max (MGOe) | α Br | ß Hcj | Tw (°C) | |||||
| Min | Max | Min | Max | Min | Max | Min | Max | %/°C | %/°C | Max | |
| N55 | 14,600 | 15,000 | 10,800 | 12,800 | 11,000 | 18,000 | 52.0 | 56.0 | -0.11 | -0.68 | 70 |
| N53 | 14,300 | 14,800 | 10,700 | 12,700 | 12,000 | 18,000 | 51.0 | 54.0 | -0.12 | -0.65 | 70 |
| N52 | 14,200 | 14,800 | 10,500 | 12,500 | 12,000 | 18,000 | 50.0 | 53.0 | -0.12 | -0.65 | 80 |
| N50 | 14,000 | 14,500 | 10,500 | 12,500 | 12,000 | 18,000 | 48.0 | 51.0 | -0.12 | -0.65 | 80 |
| N48 | 13,600 | 14,200 | 10,500 | 12,500 | 12,000 | 18,000 | 46.0 | 49.0 | -0.12 | -0.65 | 80 |
| N45 | 13,300 | 13,700 | 10,500 | 12,500 | 12,000 | 18,000 | 43.0 | 46.0 | -0.12 | -0.65 | 80 |
| N42 | 12,900 | 13,300 | 10,500 | 12,500 | 12,000 | 18,000 | 40.0 | 43.0 | -0.12 | -0.65 | 80 |
| N40 | 12,600 | 12,900 | 10,800 | 12,800 | 12,000 | 18,000 | 38.0 | 41.0 | -0.12 | -0.65 | 80 |
| N38 | 12,200 | 12,600 | 10,800 | 12,800 | 12,000 | 18,000 | 35.0 | 39.0 | -0.12 | -0.65 | 80 |
| N35 | 11,700 | 12,200 | 10,800 | 12,800 | 12,000 | 18,000 | 33.0 | 36.0 | -0.12 | -0.65 | 80 |
| N33 | 11,400 | 11,700 | 10,800 | 12,800 | 12,000 | 18,000 | 30.0 | 34.0 | -0.12 | -0.65 | 80 |
| N30 | 10,800 | 11,400 | 10,800 | 12,800 | 12,000 | 18,000 | 28.0 | 31.0 | -0.12 | -0.65 | 80 |
| N52M | 14,500 | 14,800 | 12,800 | 14,800 | 14,000 | 20,000 | 50.0 | 52.0 | -0.12 | -0.65 | 100 |
| N50M | 13,900 | 14,500 | 13,200 | 15,200 | 14,000 | 20,000 | 48.0 | 51.0 | -0.12 | -0.65 | 100 |
| N48M | 13,700 | 14,100 | 12,800 | 14,800 | 14,000 | 20,000 | 45.0 | 49.0 | -0.12 | -0.65 | 100 |
| N45M | 13,300 | 13,700 | 12,400 | 14,400 | 14,000 | 20,000 | 42.0 | 46.0 | -0.12 | -0.65 | 100 |
| N42M | 12,900 | 13,300 | 12,000 | 14,000 | 14,000 | 20,000 | 40.0 | 43.0 | -0.12 | -0.65 | 100 |
| N40M | 12,600 | 12,900 | 11,800 | 13,800 | 14,000 | 20,000 | 38.0 | 41.0 | -0.12 | -0.65 | 100 |
| N38M | 12,200 | 12,600 | 11,500 | 13,500 | 14,000 | 20,000 | 35.0 | 39.0 | -0.12 | -0.65 | 100 |
| N35M | 11,700 | 12,200 | 11,000 | 13,000 | 14,000 | 20,000 | 33.0 | 36.0 | -0.12 | -0.65 | 100 |
| N33M | 11,400 | 11,700 | 10,700 | 14,700 | 14,000 | 20,000 | 30.0 | 34.0 | -0.12 | -0.65 | 100 |
| N30M | 10,800 | 11,400 | 10,200 | 14,200 | 14,000 | 20,000 | 28.0 | 31.0 | -0.12 | -0.65 | 100 |
| N50H | 14,100 | 14,500 | 13,000 | 15,000 | 17,000 | 25,000 | 48.0 | 50.0 | -0.11 | -0.58 | 120 |
| N48H | 13,700 | 14,100 | 12,700 | 14,700 | 17,000 | 25,000 | 45.0 | 48.0 | -0.11 | -0.58 | 120 |
| N45H | 13,300 | 13,700 | 12,200 | 14,200 | 17,000 | 25,000 | 42.0 | 46.0 | -0.11 | -0.58 | 120 |
| N42H | 12,900 | 13,300 | 12,000 | 14,000 | 17,000 | 25,000 | 40.0 | 43.0 | -0.11 | -0.58 | 120 |
| N40H | 12,600 | 12,900 | 11,800 | 13,800 | 17,000 | 25,000 | 38.0 | 41.0 | -0.11 | -0.62 | 120 |
| H38H | 12,200 | 12,600 | 11,500 | 13,500 | 17,000 | 25,000 | 35.0 | 39.0 | -0.11 | -0.62 | 120 |
| N35H | 11,700 | 12,200 | 11,000 | 13,000 | 17,000 | 25,000 | 33.0 | 36.0 | -0.11 | -0.62 | 120 |
| N33H | 11,400 | 11,700 | 10,500 | 12,500 | 17,000 | 25,000 | 30.0 | 34.0 | -0.11 | -0.62 | 120 |
| N30H | 10,800 | 11,400 | 10,000 | 12,000 | 17,000 | 25,000 | 28.0 | 31.0 | -0.11 | -0.62 | 120 |
| N50SH | 13,900 | 14,300 | 13,000 | 15,000 | 20,000 | 28,000 | 47.0 | 50.0 | -0.11 | -0.60 | 150 |
| N48SH | 13,700 | 14,100 | 12,700 | 14,700 | 20,000 | 28,000 | 46.0 | 49.0 | -0.11 | -0.60 | 150 |
| N46SH | 13,500 | 13,700 | 12,500 | 14,500 | 20,000 | 28,000 | 44.0 | 47.0 | -0.11 | -0.60 | 150 |
| N44SH | 13,200 | 13,500 | 12,300 | 14,300 | 20,000 | 28,000 | 42.0 | 45.0 | -0.11 | -0.60 | 150 |
| N42SH | 12,900 | 13,200 | 12,100 | 14,100 | 20,000 | 28,000 | 40.0 | 43.0 | -0.11 | -0.60 | 150 |
| N40SH | 12,600 | 12,900 | 11,700 | 13,700 | 20,000 | 28,000 | 38.0 | 41.0 | -0.11 | -0.60 | 150 |
| N38SH | 12,200 | 12,600 | 11,300 | 13,300 | 20,000 | 28,000 | 36.0 | 39.0 | -0.11 | -0.60 | 150 |
| N35SH | 11,700 | 12,200 | 11,000 | 12,000 | 20,000 | 28,000 | 33.0 | 37.0 | -0.11 | -0.60 | 150 |
| N33SH | 11,400 | 11,700 | 10,700 | 12,700 | 20,000 | 28,000 | 31.0 | 34.0 | -0.11 | -0.60 | 150 |
| N30SH | 10,800 | 11,400 | 10,200 | 12,200 | 20,000 | 28,000 | 28.0 | 32.0 | -0.11 | -0.60 | 150 |
| N48UH | 13,700 | 14,100 | 12,700 | 14,700 | 25,000 | 32,000 | 46.0 | 49.0 | -0.10 | -0.55 | 180 |
| N46UH | 13,500 | 13,700 | 12,500 | 14,500 | 25,000 | 32,000 | 44.0 | 47.0 | -0.10 | -0.55 | 180 |
| N44UH | 13,300 | 13,500 | 12,300 | 14,300 | 25,000 | 32,000 | 42.0 | 45.0 | -0.10 | -0.55 | 180 |
| N42UH | 12,900 | 13,300 | 12,200 | 14,200 | 25,000 | 32,000 | 40.0 | 43.0 | -0.10 | -0.50 | 180 |
| N40UH | 12,600 | 13,200 | 11,800 | 13,800 | 25,000 | 32,000 | 38.0 | 41.0 | -0.10 | -0.55 | 180 |
| N38UH | 12,200 | 12,600 | 11,500 | 13,500 | 25,000 | 32,000 | 36.0 | 39.0 | -0.10 | -0.55 | 180 |
| N35UH | 11,700 | 12,200 | 11,000 | 13,000 | 25,000 | 32,000 | 33.0 | 36.0 | -0.10 | -0.55 | 180 |
| N33UH | 11,400 | 11,700 | 10,700 | 12,700 | 25,000 | 32,000 | 31.0 | 34.0 | -0.10 | -0.55 | 180 |
| N30UH | 10,800 | 11,400 | 10,200 | 12,200 | 25,000 | 32,000 | 28.0 | 31.0 | -0.10 | -0.50 | 180 |
| N45EH | 13,100 | 13,700 | 12,200 | 14,200 | 29,000 | 36,000 | 42.0 | 46.0 | -0.09 | -0.50 | 200 |
| N42EH | 12,900 | 13,300 | 12,200 | 14,200 | 30,000 | 36,000 | 40.0 | 43.0 | -0.09 | -0.50 | 200 |
| N40EH | 12,600 | 12,900 | 11,800 | 13,800 | 30,000 | 36,000 | 38.0 | 41.0 | -0.09 | -0.50 | 200 |
| N38EH | 12,200 | 12,700 | 11,400 | 13,400 | 30,000 | 36,000 | 36.0 | 39.0 | -0.09 | -0.50 | 200 |
| N35EH | 11,700 | 12,500 | 11,000 | 13,000 | 30,000 | 36,000 | 33.0 | 37.0 | -0.09 | -0.50 | 200 |
| N33EH | 11,400 | 11,700 | 10,700 | 12,700 | 30,000 | 36,000 | 31.0 | 34.0 | -0.09 | -0.50 | 200 |
| N30EH | 10,800 | 11,400 | 10,200 | 12,200 | 30,000 | 36,000 | 28.0 | 31.0 | -0.09 | -0.50 | 200 |
| N38AH | 12,200 | 12,600 | 11,600 | 13,600 | 35,000 | 42,000 | 35.0 | 39.0 | -0.09 | -0.45 | 220 |
| N35AH | 11,700 | 12,200 | 11,100 | 13,100 | 35,000 | 42,000 | 32.0 | 36.0 | -0.09 | -0.45 | 220 |
| N32AH | 11,300 | 11,700 | 10,700 | 12,700 | 35,000 | 42,000 | 30.0 | 33.0 | -0.09 | -0.45 | 220 |
| Alliance NdFeB Grades | Density | Tensile Strength | Modulus of Elasticity | Thermal Expansion Coefficient /°C | Electrical Resistivity | Curie Temp | |||||
| g/cm3 | lbs/in3 | psi | Pa x 106 | psi x 106 | Pa x 109 | ǁ to M | Ʇ to M | Ω-cm x10-6@ 20 C | °C | ||
| N55 | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N53 | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N52 | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N50 | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N48 | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N45 | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N42 | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N40 | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N38 | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N35 | >7.4 | >0.268 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N33 | >7.4 | >0.268 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N30 | >7.4 | >0.268 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N52M | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N50M | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N48M | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N45M | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N42M | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N40M | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N38M | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N35M | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N33M | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N30M | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N50H | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N48H | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N45H | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N42H | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N40H | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| H38H | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N35H | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N33H | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N30H | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N50SH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N48SH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N46SH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N44SH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N42SH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N40SH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N38SH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N35SH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N33SH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N30SH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N48UH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N46UH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N44UH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N42UH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N40UH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N38UH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N35UH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N33UH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N30UH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N45EH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N42EH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N40EH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N38EH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N35EH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N33EH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N30EH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N38AH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N35AH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
| N32AH | >7.5 | >0.271 | 12,000 | 83 | 22 | 152 | 3.4x10-6 | -4.8x10-6 | 160.0 | 310 | |
