By Grade
NEODYMIUM IRON BORON MAGNETS – Magnet Grade
Magnet Grade – Known as third generation of Rare Earth magnets, Neodymium Iron Boron (NdFeB) magnets are the most powerful and advanced commercialized permanent magnet today. Since they are made from Neodymium, one of the most plentiful rare earth elements, and inexpensive iron, NdFeB magnets offer the best value in cost and performance.
Sintered NdFeB Magnets By Grade
NdFeB magnets are available in both sintered and bonded forms. Sintered NdFeB offers the highest magnetic properties (28 MGOe to 50 MGOe) while Bonded NdFeB offers lower energy properties. Although bonded magnets do not possess magnetic properties as advanced as those of sintered magnets, they can be made in shapes and sizes that are difficult to achieve with sintering.
A variety of coatings can be applied to the magnets’ surface to overcome the principle drawback of neodymium-based magnets, their tendency to corrode easily.
Neodymium Magnet Grade: N27-N52, 30M-50M, 30H-48H, 30SH-45SH, 28UH-40UH, 28EH-38EH, 28AH~35AH;
Sintered NdFeB Magnets By Grade
Typical Magnetic Properties / Magnet Grade
Grade | Max. Energy Product | Remanence | Coercive Force | Rev. Temp. Coeff. | Curie Temp. | Max. Working Temp. | ||||||
(BH)max | Br | Hc | Hci | Bd | Hd | Tc | Tw | |||||
MGOe | kJ/m3 | kG | mT | kOe | kA/m | kOe | kA/m | %/°C | %/°C | °C | °C | |
N27 | 25-29 | 199-231 | 10.50 | 1050 | >10.0 | >796 | >12.0 | >955 | -0.12 | -0.60 | 310 | 80 |
N30 | 28-31 | 223-247 | 11.00 | 1100 | >10.2 | >812 | >12.0 | >955 | -0.12 | -0.60 | 310 | 80 |
N33 | 31-33 | 247-263 | 11.50 | 1150 | >10.5 | >836 | >12.0 | >955 | -0.12 | -0.60 | 310 | 80 |
N35 | 33-36 | 263-287 | 12.00 | 1200 | >10.9 | >868 | >12.0 | >955 | -0.12 | -0.60 | 310 | 80 |
N38 | 36-39 | 287-310 | 12.40 | 1240 | >11.3 | >899 | >12.0 | >955 | -0.12 | -0.60 | 310 | 80 |
N40 | 38-41 | 302-326 | 12.70 | 1270 | >11.4 | >907 | >12.0 | >955 | -0.12 | -0.60 | 310 | 80 |
N42 | 40-43 | 318-342 | 13.00 | 1300 | >11.5 | >915 | >12.0 | >955 | -0.12 | -0.60 | 310 | 80 |
N45 | 43-46 | 342-366 | 13.50 | 1350 | >11.6 | >923 | >12.0 | >955 | -0.12 | -0.60 | 310 | 80 |
N48 | 46-49 | 366-390 | 14.00 | 1400 | >11.6 | >923 | >12.0 | >955 | -0.12 | -0.60 | 310 | 80 |
N50 | 48-51 | 382-406 | 14.30 | 1430 | >10.3 | >820 | >12.0 | >955 | -0.12 | -0.60 | 310 | 80 |
N52 | 50-53 | 398-422 | 14.50 | 1450 | >10.3 | >820 | >11.0 | >877 | -0.12 | -0.60 | 310 | 80 |
N30M | 28-31 | 223-247 | 11.00 | 1100 | >10.2 | >812 | >14.0 | >1114 | -0.12 | -0.59 | 320 | 100 |
N33M | 31-33 | 247-263 | 11.50 | 1150 | >10.5 | >836 | >14.0 | >1114 | -0.12 | -0.59 | 320 | 100 |
N35M | 33-36 | 263-287 | 12.00 | 1200 | >10.9 | >868 | >14.0 | >1114 | -0.12 | -0.59 | 320 | 100 |
N38M | 36-39 | 287-310 | 12.40 | 1240 | >11.4 | >907 | >14.0 | >1114 | -0.12 | -0.59 | 320 | 100 |
N40M | 38-41 | 302-326 | 12.70 | 1270 | >11.6 | >923 | >14.0 | >1114 | -0.12 | -0.59 | 320 | 100 |
N42M | 40-43 | 318-342 | 13.00 | 1300 | >12.0 | >955 | >14.0 | >1114 | -0.12 | -0.59 | 320 | 100 |
N45M | 43-46 | 342-366 | 13.50 | 1350 | >12.5 | >995 | >14.0 | >1114 | -0.12 | -0.59 | 320 | 100 |
N48M | 46-49 | 366-390 | 14.00 | 1400 | >12.9 | >1027 | >14.0 | >1114 | -0.12 | -0.59 | 320 | 100 |
N50M | 48-51 | 382-406 | 14.30 | 1430 | >13.1 | >1043 | >14.0 | >1114 | -0.11 | -0.58 | 320-350 | 100 |
N30H | 28-31 | 223-247 | 11.00 | 1100 | >10.2 | >812 | >17.0 | >1353 | -0.11 | -0.58 | 320-350 | 120 |
N33H | 31-34 | 247-271 | 11.50 | 1150 | >10.5 | >836 | >17.0 | >1353 | -0.11 | -0.58 | 320-350 | 120 |
N35H | 33-36 | 263-287 | 12.00 | 1200 | >10.9 | >868 | >17.0 | >1353 | -0.11 | -0.58 | 320-350 | 120 |
N38H | 36-39 | 287-310 | 12.40 | 1240 | >11.4 | >907 | >17.0 | >1353 | -0.11 | -0.58 | 320-350 | 120 |
N40H | 38-41 | 302-326 | 12.70 | 1270 | >11.6 | >923 | >17.0 | >1353 | -0.11 | -0.58 | 320-350 | 120 |
N42H | 40-43 | 318-342 | 13.00 | 1300 | >12.0 | >955 | >17.0 | >1353 | -0.11 | -0.58 | 320-350 | 120 |
N45H | 43-46 | 342-366 | 13.50 | 1350 | >12.5 | >999 | >17.0 | >1353 | -0.11 | -0.58 | 320-350 | 120 |
N48H | 46-49 | 366-390 | 14.00 | 1400 | >12.9 | >1027 | >17.0 | >1353 | -0.11 | -0.55 | 340-360 | 120 |
N30SH | 28-31 | 223-247 | 11.00 | 1100 | >10.2 | >812 | >20.0 | >1592 | -0.11 | -0.55 | 340-360 | 150 |
N33SH | 31-34 | 247-271 | 11.50 | 1150 | >10.6 | >844 | >20.0 | >1592 | -0.11 | -0.55 | 340-360 | 150 |
N35SH | 33-36 | 263-287 | 12.00 | 1200 | >11.0 | >876 | >20.0 | >1592 | -0.11 | -0.55 | 340-360 | 150 |
N38SH | 36-39 | 287-310 | 12.40 | 1240 | >11.4 | >907 | >20.0 | >1592 | -0.11 | -0.55 | 340-360 | 150 |
N40SH | 38-41 | 302-326 | 12.70 | 1270 | >11.8 | >939 | >20.0 | >1592 | -0.11 | -0.55 | 340-360 | 150 |
N42SH | 40-43 | 318-342 | 13.00 | 1300 | >12.4 | >987 | >20.0 | >1592 | -0.11 | -0.55 | 340-360 | 150 |
N45SH | 43-46 | 342-366 | 13.50 | 1350 | >12.6 | >1003 | >20.0 | >1592 | -0.11 | -0.51 | 350-380 | 150 |
N28UH | 26-29 | 207-231 | 10.60 | 1060 | >9.6 | >764 | >25.0 | >1990 | -0.11 | -0.51 | 350-380 | 180 |
N30UH | 28-31 | 223-247 | 11.00 | 1100 | >10.2 | >812 | >25.0 | >1990 | -0.11 | -0.51 | 350-380 | 180 |
N33UH | 31-34 | 247-271 | 11.50 | 1150 | >10.8 | >860 | >25.0 | >1990 | -0.11 | -0.51 | 350-380 | 180 |
N35UH | 33-36 | 263-287 | 12.00 | 1200 | >11.3 | >899 | >25.0 | >1990 | -0.11 | -0.51 | 350-380 | 180 |
N38UH | 36-39 | 287-310 | 12.40 | 1240 | >11.5 | >915 | >25.0 | >1990 | -0.11 | -0.51 | 350-380 | 180 |
N40UH | 38-41 | 302-326 | 12.70 | 1270 | >11.8 | >939 | >25.0 | >1990 | -0.11 | -0.51 | 350-380 | 180 |
N28EH | 26-29 | 207-231 | 10.70 | 1070 | >9.8 | >780 | >30.0 | >2388 | -0.11 | -0.51 | 350-380 | 200 |
N30EH | 28-31 | 223-247 | 11.10 | 1110 | >10.2 | >812 | >30.0 | >2388 | -0.11 | -0.51 | 350-380 | 200 |
N33EH | 31-34 | 227-271 | 11.50 | 1150 | >10.8 | >860 | >30.0 | >2388 | -0.11 | -0.51 | 350-380 | 200 |
N35EH | 33-36 | 263-287 | 12.00 | 1200 | >11.1 | >884 | >30.0 | >2388 | -0.11 | -0.51 | 350-380 | 200 |
N38EH | 36-39 | 287-310 | 12.40 | 1240 | >11.5 | >915 | >30.0 | >2388 | -0.11 | -0.51 | 350-380 | 200 |
N28AH | 26-29 | 207-231 | 10.70 | 1070 | >9.8 | >780 | >35.0 | >2786 | -0.11 | -0.51 | 350-380 | 220 |
N30AH | 28-31 | 223-247 | 11.10 | 1110 | >10.2 | >812 | >35.0 | >2786 | -0.11 | -0.51 | 350-380 | 220 |
N33AH | 31-34 | 227-271 | 11.50 | 1150 | >10.8 | >860 | >35.0 | >2786 | -0.11 | -0.51 | 350-380 | 220 |
N35AH | 33-36 | 263-287 | 12.00 | 1200 | >11.1 | >884 | >35.0 | >2786 | -0.11 | -0.51 | 350-380 | 220 |
3 x 10mm Small Neodymium Cylinder Magnet N45 Ni
3 x 10mm Small Neodymium Cylinder Magnet N45 Ni, Rare Earth Super Strong Licensed Sintering Neodymium Cylinder Magnet for Motor Sensor Rotor Craft Toy, Amazing Powerful Bar NdFeB Permanent Magnets China Factory Ø 3 x 10mm Small Neodymium Cylinder Magnet N45 Ni Technical Specifications: Item: NRON45-3-10 Grade: N45 Material: Neodymium (NdFeB) Plating: Nickel Shape: Rod, […]
3 x 6mm Small Rod Magnets Neodymium N48 Ni
3 x 6mm Small Rod Magnets Neodymium N48 Ni, Rare Earth Super Strong Licensed Sintering Neodymium Cylinder Magnet for Motor Sensor Rotor Craft Toy, Amazing Powerful Bar NdFeB Permanent Magnets China Factory Ø 3 x 6mm Small Rod Magnets Neodymium N48 Ni Technical Specifications: Item: NRON48-3-6 Grade: N48 Material: Neodymium (NdFeB) Plating: Nickel Shape: Rod, […]
3 x 5mm Neodymium Small Magnet Rod N42 Ni
3 x 5mm Neodymium Small Magnet Rod N42 Ni, Rare Earth Super Strong Licensed Sintered Neodymium Cylinder Magnet for Motor Sensor Rotor Craft Toy, Amazing Powerful Bar NdFeB Permanent Magnets China Factory Ø 3 x 5mm Neodymium Small Magnet Rod N42 Ni Technical Specifications: Item: NRON42-3-5 Grade: N42 Material: Neodymium (NdFeB) Plating: Nickel Shape: Rod, […]
3 x 4mm Neodymium Small Cylindrical Magnet N45 Ni
3 x 4mm Neodymium Small Cylindrical Magnet N45 Ni, Rare Earth Super Strong Licensed Sintered Neodymium Cylinder Magnet for Motor Sensor Rotor Craft Toy, Amazing Powerful Bar NdFeB Permanent Magnets China Factory Ø 3 x 4mm Neodymium Small Cylindrical Magnet N45 Ni Technical Specifications: Item: NRON45-3-4 Grade: N45 Material: Neodymium (NdFeB) Plating: Nickel Shape: Rod, […]
3 x 3mm Tiny Neodymium Magnet Cylinder N42 Ni
3 x 3mm Tiny Neodymium Magnet Cylinder N42 Ni, Rare Earth Super Strong Licensed Sintered Neodymium Cylinder Magnet for Motor Sensor Rotor Craft Toy, Amazing Powerful Bar NdFeB Permanent Magnets China Factory Ø 3 x 3mm Tiny Neodymium Magnet Cylinder N42 Ni Technical Specifications: Item: NRON42-3-3 Grade: N42 Material: Neodymium (NdFeB) Plating: Nickel Shape: Rod, […]
2 x 3mm Small Cylinder Magnet Neodymium N48 Ni
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2 x 4mm Small Neodymium Rodmagnet N48H Ni
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1.5 x 2mm Mini Rod Magnet Neodymium N48 Ni
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2 x 2mm Small Neodymium Minute Magnet Rod N50 Ni
2 x 2mm Small Neodymium Minute Magnet Rod N50 Ni, Rare Earth Super Strong Licensed Sintered Neodymium Cylinder Magnet for Motor Sensor Rotor Craft Toy, Amazing Powerful Bar NdFeB Permanent Magnets China Factory Ø 2 x 2mm Small Neodymium Minute Magnet Rod N50 Ni NiTechnical Specifications: Item: NRON50-2-2 Grade: N50 Material: Neodymium (NdFeB) Plating: Nickel […]
2 x 2mm Neodymium Litte Magnet Rod N45 Ni
2 x 2mm Neodymium Litte Magnet Rod N45 Ni, Rare Earth Super Strong Licensed Sintered Neodymium Ring Magnet for Speaker Motor Sensor Rotor Craft Toy, Amazing Powerful Loundspeaker NdFeB Permanent Magnets China Factory Ø 2 x 2mm Neodymium Litte Magnet Rod N45 NiTechnical Specifications: Item: NRON45-2-2 Grade: N45 Material: Neodymium (NdFeB) Plating: Nickel Shape: Rod, […]
1 x 1mm Neodymium Litte Tiny Magnet Rod N45 Ni
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50 x 8 x 2mm Huge Ring Magnet Neodymium N40 Ni
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40 x 25 x 5mm Radial Neodymium Ring Magnet N45 Ni
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40 x 25 x 5mm Neodymium Speaker Magnet Ring N42 Ni
40 x 25 x 5mm Neodymium Speaker Magnet Ring N42 Ni, Rare Earth Super Strong Licensed Sintered Neodymium Ring Magnet for Speaker Motor Sensor Rotor Craft Toy, Amazing Powerful Loundspeaker NdFeB Permanent Magnets China Factory Ø 40 x 25 x 5mm Neodymium Speaker Magnet Ring N42 Ni Technical Specifications: Item: NRN42-40-25-5 Grade: N42 Material: Neodymium […]
40 x 23 x 6mm Powerful Rare Earth Magnet Ring N38SH Ni
40 x 23 x 6mm Powerful Rare Earth Magnet Ring N38SH Ni, Rare Earth Super Strong Licensed Sintered Neodymium Ring Magnet for Speaker Motor Sensor Rotor Craft Toy, Amazing Powerful Loundspeaker NdFeB Permanent Magnets China Wholesaler Ø 40 x 23 x 6mm Powerful Rare Earth Magnet Ring N38SH Ni Technical Specifications: Item: NRN38SH-40-23-6 Grade: N38SH […]
40 x 23 x 6mm Powerful Neodymium Magnets Ring N42 Ni
40 x 23 x 6mm Powerful Neodymium Magnets Ring N42 Ni, Rare Earth Super Strong Licensed Sintered Neodymium Ring Magnet for Speaker Motor Sensor Rotor Craft Toy, Amazing Powerful Loundspeaker NdFeB Permanent Magnets China Wholesaler Ø 40 x 23 x 6mm Powerful Neodymium Magnets Ring N42 Ni Technical Specifications: Item: NRN42-40-23-6 Grade: N42 Material: Neodymium […]
35 x 24 x 10mm Powerful NdFeB Magnets Ring N42 Ni
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27 x 16 x 5mm Strong Permanent Magnet Ring N45 Ni
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27 x 21 x 3mm Wholesale NdFeB Magnet Ring N40 Ni
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25 x 4 x 5mm Sintered Ring NdFeB Magnets N45 Ni
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20 x 5 x 10mm Ring Shape Sintered Neodymium Magnets N45SH Ni
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20 x 10 x 6mm Ring Shaped Magnet Neodymium N45 Ni
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20 x 4 x 5mm Buy Neodymium Magnets Ring N45 Ni
20 x 4 x 5mm Buy Neodymium Magnets Ring N45 Ni, Rare Earth Super Strong Licensed Sintered Neodymium Ring Magnet for Speaker Motor Sensor Rotor Craft Toy, Amazing Powerful Loundspeaker NdFeB Permanent Magnets China Wholesaler Ø 20 x 4 x 5mm Buy Neodymium Magnets Ring N45 Ni Technical Specifications: Item: NRN45-20-4-5 Grade: N45 Material: Neodymium […]
20 x 6 x 8mm NdFeB Permanent Magnets Ring N38 Ni
20 x 6 x 8mm NdFeB Permanent Magnets Ring N38 Ni, Rare Earth Super Strong Licensed Sintered Neodymium Ring Magnet for Speaker Motor Sensor Rotor Craft Toy, Amazing Powerful Loundspeaker NdFeB Permanent Magnets China Wholesaler Ø 20 x 6 x 8mm NdFeB Permanent Magnets Ring N38 Ni Technical Specifications: Item: NRN38-20-6-8 Grade: N38 Material: Neodymium […]
20 x 4 x 7mm General NdFeB Ring Magnets N35 Ni
20 x 4 x 7mm General NdFeB Ring Magnets N35 Ni, High Performance Rare Earth Super Strong Licensed Sintered Neodymium Ring Magnet for Speaker Motor Sensor Rotor Craft Toy, Amazing Powerful Loundspeaker NdFeB Permanent Magnets China Wholesaler Ø 20 x 4 x 7mm General NdFeB Ring Magnets N35 Ni Technical Specifications: Item: NRN35-20-4-7 Grade: N35 […]
19 x 13 x 6mm Strongest Neodymium Ring Magnets N42H Ni
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19 x 13 x 6mm Super Strong Neodymium Ring N42 Ni
19 x 13 x 6mm Super Strong Neodymium Ring N42 Ni, High Performance Rare Earth Super Strong Licensed Sintered Neodymium Ring Magnet for Speaker Motor Sensor Rotor Craft Toy, Amazing Powerful Loundspeaker NdFeB Permanent Magnets China Wholesaler Ø 19 x 13 x 6mm Super Strong Neodymium Ring N42 Ni Technical Specifications: Item: NRN42-19-13-6 Grade: N42 […]
19 x 9.5 x 6mm Super Strong Ring Magnet NdFeB N42 Ni
19 x 9.5 x 6mm Super Strong Ring Magnet NdFeB N42 Ni, Loundspeaker Magnetic Rings, Rare Earth Super Strong Sintered NdFeB Ring Magnet for Speaker Motor Sensor Rotor Craft Toy, Amazing Powerful Licensed Neodymium Permanent Magnets China Supplier Ø 19 x 9.5 x 6mm Super Strong Ring Magnet NdFeB N42 Ni Technical Specifications: Item: NRN42-19-9.6-6 […]