Model NO.: SM052
Specification: N35-N52
Origin: Ningbo
HS Code: 8505111000
Material: Ndfeb + other rare earth materialÂ
Grade: N35 to N52Â
Working Temperature: 80 deg to 200 degÂ
Coating: Metallic Zinc, Nickel, Nickel+Nickel, Copper+Nickel, Nickel+Copper+Nickel,Â
Gold, Organic Epoxy, Nickel+Epoxy CoatingÂ
Dimension: As your requiementsÂ
Tolerance: Unless specified requirements, +/-0.1mm, +/-0.05mmÂ
Orientation: The direction of magnetization depends on your applications.Â
Quantity: Small order can be acceptedÂ
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Warnings:
Neodymium magnets attract each other with almost twice the force that they use to attract
steel objects.They also attract each other through very large distances, even small magnetsÂ
will attract each other through the thickness of your finger!
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Contact us:
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Please do no hesitate to contact with us if you have any questions or requests on magnet.
You can inquiry either by email/fax or instant message
We are pleased to offer your service and respond within 12 hours
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Contact person:Julia FungÂ
Tel:+86-574-88229324-811
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Relevant Shipping Advantage:Â
1) Appointed forwarder is welcome
2) We can ship by express, air & sea
3)Â We have big discount on our won forwarder, and mainly world-wide express such as :DHL, UPS, Fedex
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Welcome to contact with us!
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Magnetic properties of Sintered Neodymium Magnet (NdFeB magnet): | |||||
| Grade | Remanence | Coercive Force | Intrinsic Coercive Force | Max.  energy product | Max. Operating Temperature |
| Br mT (kGs) |
Hcb kA/m (kOe) |
Hcj kA/m (kOe) |
( BH )max kJ/m 3 (MGOe) |
Tw | |
| N35 | 1170-1220 (11.7-12.2) |
≥  868 ( ≥  10.9) |
≥  955 ( ≥  12) |
263-287 (33-36) |
80Â deg |
| N38 | 1220-1250 (12.2-12.5) |
≥  899 ( ≥  11.3) |
≥  955 ( ≥  12) |
287-310 (36-39) |
80Â deg |
| N40 | 1250-1280 (12.5-12.8) |
≥  907 ( ≥  11.4) |
≥  955 ( ≥  12) |
302-326 (38-41) |
80Â deg |
| N42 | 1280-1320 (12.8-13.2) |
≥  915 ( ≥  11.5) |
≥  955 ( ≥  12) |
318-342 (40-43) |
80Â deg |
| N45 | 1320-1380 (13.2-13.8) |
≥  923 ( ≥  11.6) |
≥  955 ( ≥  12) |
342-366 (43-46) |
80Â deg |
| N48 | 1380-1420 (13.8-14.2) |
≥  923 ( ≥  11.6) |
≥  876 ( ≥  12) |
366-390 (46-49) |
80Â deg |
| N50 | 1400-1450 (14.0-14.5) |
≥  796 ( ≥  10.0) |
≥  876 ( ≥  11) |
382-406 (48-51) |
60Â deg |
| N52 | 1430-1480 (14.3-14.8) |
≥  796 ( ≥  10.0) |
≥  876 ( ≥  11) |
398-422 (50-53) |
60Â deg |
| 30M | 1080-1130 (10.8-11.3) |
≥  796 ( ≥  10.0) |
≥  1114 ( ≥  14) |
223-247 (28-31) |
100Â deg |
| 33M | 1130-1170 (11.3-11.7) |
≥  836 ( ≥  10.5) |
≥  1114 ( ≥  14) |
247-263 (31-33) |
100Â deg |
| 35M | 1170-1220 (11.7-12.2) |
≥  868 ( ≥  10.9) |
≥  1114 ( ≥  14) |
263-287 (33-36) |
100Â deg |
| 38M | 1220-1250 (12.2-12.5) |
≥  899 ( ≥  11.3) |
≥  1114 ( ≥  14) |
287-310 (36-39) |
100Â deg |
| 40M | 1250-1280 (12.5-12.8) |
≥  923 ( ≥  11.6) |
≥  1114 ( ≥  14) |
302-326 (38-41) |
100Â deg |
| 42M | 1280-1320 (12.8-13.2) |
≥  955 ( ≥  12.0) |
≥  1114 ( ≥  14) |
318-342 (40-43) |
100Â deg |
| 45M | 1320-1380 (13.2-13.8) |
≥  995 ( ≥  12.5) |
≥  1114 ( ≥  14) |
342-366 (43-46) |
100Â deg |
| 48M | 1360-1430 (13.6-14.3) |
≥  1027 ( ≥  12.9) |
≥  1114 ( ≥  14) |
366-390 (46-49) |
100Â deg |
| 50M | 1400-1450 (14.0-14.5) |
≥  1033 ( ≥  13.0) |
≥  1114 ( ≥  14) |
382-406 (48-51) |
100Â deg |
| 30H | 1080-1130 (10.8-11.3) |
≥  796 ( ≥  10.0) |
≥  1353 ( ≥  17) |
223-247 (28-31) |
120Â deg |
| 33H | 1130-1170 (11.3-11.7) |
≥  836 ( ≥  10.5) |
≥  1353 ( ≥  17) |
247-271 (31-34) |
120Â deg |
| 35H | 1170-1220 (11.7-12.2) |
≥  868 ( ≥  10.9) |
≥  1353 ( ≥  17) |
263-287 (33-36) |
120Â deg |
| 38H | 1220-1250 (12.2-12.5) |
≥  899 ( ≥  11.3) |
≥  1353 ( ≥  17) |
287-310 (36-39) |
120Â deg |
| 40H | 1250-1280 (12.5-12.8) |
≥  923 ( ≥  11.6) |
≥  1353 ( ≥  17) |
302-326 (38-41) |
120Â deg |
| 42H | 1280-1320 (12.8-13.2) |
≥  955 ( ≥  12.0) |
≥  1353 ( ≥  17) |
318-342 (40-43) |
120Â deg |
| 45H | 1300-1360 (13-13.6) |
≥  963 ( ≥  12.1) |
≥  1353 ( ≥  17) |
326-358 (43-46) |
120Â deg |
| 48H | 1370-1430 (13.7-14.3) |
≥  995 ( ≥  12.5) |
≥  1353 ( ≥  17) |
366-390 (46-49) |
120Â deg |
| 30SH | 1080-1130 (10.8-11.3) |
≥  804 ( ≥  10.1) |
≥  1592 ( ≥  20) |
223-247 (28-31) |
150Â deg |
| 33SH | 1130-1170 (11.3-11.7) |
≥  844 ( ≥  10.6) |
≥  1592 ( ≥  20) |
247-271 (31-34) |
150Â deg |
| 35SH | 1170-1220 (11.7-12.2) |
≥  876 ( ≥  11.0) |
≥  1592 ( ≥  20) |
263-287 (33-36) |
150Â deg |
| 38SH | 1220-1250 (12.2-12.5) |
≥  907 ( ≥  11.4) |
≥  1592 ( ≥  20) |
287-310 (36-39) |
150Â deg |
| 40SH | 1240-1280 (12.5-12.8) |
≥  939 ( ≥  11.8) |
≥  1592 ( ≥  20) |
302-326 (38-41) |
150Â deg |
| 42SH | 1280-1320 (12.8-13.2) |
≥  987 ( ≥  12.4) |
≥  1592 ( ≥  20) |
318-342 (40-43) |
150Â deg |
| 45SH | 1320-1380 (13.2-13.8) |
≥  1003 ( ≥  12.6) |
≥  1592 ( ≥  20) |
342-366 (43-46) |
150Â deg |
| 28UH | 1020-1080 (10.2-10.8) | ≥  764 ( ≥  9.6) |
≥  1990 ( ≥  25) |
207-231 (26-29) |
180Â deg |
| 30UH | 1080-1130 (10.8-11.3) | ≥  812 ( ≥  10.2) |
≥  1990 ( ≥  25) |
223-247 (28-31) |
180Â deg |
| 33UH | 1130-1170 (11.3-11.7) |
≥  852 ( ≥  10.7) |
≥  1990 ( ≥  25) |
247-271 (31-34) |
180Â deg |
| 35UH | 1180-1220 (11.8-12.2) |
≥  860 ( ≥  10.8) |
≥  1990 ( ≥  25) |
263-287 (33-36) |
180Â deg |
| 38UH | 1220-1250 (12.2-12.5) |
≥  876 ( ≥  11.0) |
≥  1990 ( ≥  25) |
287-310 (36-39) |
180Â deg |
| 40UH | 1240-1280 (12.5-12.8) |
≥  899 ( ≥  11.3) |
≥  1990 ( ≥  25) |
302-326 (38-41) |
180Â deg |
| 28EH | 1040-1090 (10.4-10.9) |
≥  780 ( ≥  9.8) |
≥  2388 ( ≥  30) |
207-231 (26-29) |
200Â deg |
| 30EH | 1080-1130 (10.8-11.3) | ≥  812 ( ≥  10.2) |
≥  2388 ( ≥  30) |
223-247 (28-31) |
200Â deg |
| 33EH | 1130-1170 (11.3-11.7) |
≥  836 ( ≥  10.5) |
≥  2388 ( ≥  30) |
247-271 (31-34) |
200Â deg |
| 35EH | 1170-1220 (11.7-12.2) |
≥  876 ( ≥  11.0) |
≥  2388 ( ≥  30) |
263-287 (33-36) |
200Â deg |
| 38EH | 1220-1250 (12.2-12.5) |
≥  899 ( ≥  11.3) |
≥  2388 ( ≥  30) |
287-310 (36-39) |
200Â deg |
| 30AH | 1080-1120 (10.8-11.2) |
≥  812 ( ≥  10.2) |
≥  2785 ( ≥  35) |
223-255 (28-32) |
220Â deg |
| 33AH | 1120-1170 (11.2-11.7) |
≥  812 ( ≥  10.2) |
≥  2785 ( ≥  35) |
247-271 (31-34) |
220Â deg |
| Physical and Mechanical Properties of Neodymium Magnet: | |||||
| Thermal Conductivity | 7.7 kcal/m-h-° C | ||||
| Young' s Modulus | 1.7 x 104 kg/mm2 | ||||
| Bending Strength | 24 kg/mm2 | ||||
| Compressive Strength | 80 kg/mm2 | ||||
| Electrical Resistivity | 160 µ -ohm-cm/cm2 | ||||
| Density | 7.4-7.55Â g/cm3 | ||||
| Vickers Hardness | 500 - 600 | ||||
| Available coatings for sintered Neodymium Magnet (NdFeB magnet): | |||||
| Available Coatings: | |||||
| Surface | Coating | Thickness (Microns) | Color | Resistance | |
| Passivation | 1 | Silver Grey | Temporary Protection | ||
| Nickel | Ni+Ni | 10.0-20 | Bright Silver | Excellent against Humidity | |
| Ni+Cu+Ni | |||||
| Zinc | Zn | 8.0-20 | Bright Blue | Good Against Salt Spray | |
| C-Zn | Shinny Color | Excellent Against Salt Spray | |||
| Tin | Ni+Cu+Sn | 15-20 | Silver | Superior Against Humidity | |
| Gold | Ni+Cu+Au | 10.0-20 | Gold | Superior Against Humidity | |
| Copper | Ni+Cu | 10.0-20 | Gold | Temporary Protection | |
| Epoxy | Epoxy | 15-25 | Black,  Red,  Grey | Excellent Against Humidity &  Salt Spray |
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| Ni+Cu+Epoxy | |||||
| Zn+Epoxy | |||||
| Chemical | Ni | 10.0-20 | Silver Grey | Excellent Against Humidity | |
| Parylene | Parylene | 5.0-20 | Grey | Excellent Against Humidity,  Salt Spray.  Superior Against Solvents,  Gases,  Fungi and Bacteria. FDA Approved. |
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