Low grade magnet steel (N series / M series / H series)
Low grade magnet steel (N series / M series / H series) Certifications
Low grade magnet steel (N series / M series / H series) Performance Advantages
- High precision
- Good corrosion resistance
Low grade magnet steel (N series / M series / H series) Application fields
Mobile Phone Shield
IT Communication
Low grade magnet steel (N series / M series / H series) Performance parameterdownload
| No | Grade | Magnetic properties of N-series Magnet |
Max Working Temp Tw（℃） | |||
| Remanence,Br mT or kGs | Coercivity,Hcb kA/m or kOe | Intrinsic Coercivity,Hcj kA/m or kOe | Maximium Energy Product,(BH)max kJ/m³ or kOe | |||
| 1 | N55 | 1470-1530(14.7-15.3) | ≥860（≥10.8） | ≥876（≥11） | 414-438（52-56） | 80 |
| 2 | N52 | 1430-1480(14.3-14.8) | ≥860（≥10.8） | ≥955（≥12） | 398-422（50-53） | 80 |
| 3 | N50 | 1400-1450(14.0-14.5) | ≥860（≥10.8） | ≥955（≥12） | 382-406（48-51） | 80 |
| 4 | N48 | 1380-1420(13.8-14.2) | ≥836（≥10.5） | ≥955（≥12） | 366-390（46-49） | 80 |
| 5 | N45 | 1320-1380(13.2-13.8) | ≥876（≥11.0） | ≥955（≥12） | 342-366（43-46） | 80 |
| 6 | N42 | 1280-1320(12.8-13.2) | ≥923（≥11.6） | ≥955（≥12） | 318-342（40-43） | 80 |
| 7 | N40 | 1250-1280(12.5-12.8) | ≥923（≥11.6） | ≥955（≥12） | 302-326（38-41） | 80 |
| 8 | N38 | 1220-1250(12.5-12.8) | ≥899（≥11.3） | ≥955（≥12） | 287-310（36-39） | 80 |
| 9 | N35 | 1170-1210(11.7-12.2) | ≥868（≥10.9） | ≥955（≥12） | 263-287（33-36） | 80 |
| 10 | N33 | 1130-1180(11.3-11.8) | ≥836（≥10.5） | ≥955（≥12） | 247-270（31-34） | 80 |
| 11 | N30 | 1080-1130(10.8-11.3) | ≥796（≥10） | ≥955（≥12） | 223-247（28-31） | 80 |
| No | Grade | Magnetic properties of M-series Magnet |
Max Working Temp Tw（℃） | |||
| Remanence,Br mT or kGs | Coercivity,Hcb kA/m or kOe | Intrinsic Coercivity,Hcj kA/m or kOe | Maximium Energy Product,(BH)max kJ/m³ or kOe | |||
| 1 | N52M | 1430-1480(14.3-14.8) | ≥1035（≥13.0） | ≥1114（≥14） | 398-422（50-53） | 100 |
| 2 | N50M | 1400-1450(14.0-14.5) | ≥1035（≥13.0） | ≥1114（≥14） | 382-406（48-51） | 100 |
| 3 | N48M | 1380-1430(13.8-14.3) | ≥1027（≥12.9） | ≥1114（≥14） | 366-390（46-49） | 100 |
| 4 | N45M | 1330-1380(13.3-13.8) | ≥995（≥12.5） | ≥1114（≥14） | 342-366（43-46） | 100 |
| 5 | N42M | 1280-1330(12.8-13.3) | ≥955（≥12.0） | ≥1114（≥14） | 318-342（40-43） | 100 |
| 6 | N40M | 1250-1280(12.5-12.8) | ≥923（≥11.6） | ≥1114（≥14） | 302-326（38-41） | 100 |
| 7 | N38M | 1220-1250(12.2-12.5) | ≥899（≥11.3） | ≥1114（≥14） | 287-310（36-39） | 100 |
| 8 | N35M | 1170-1220(11.7-12.2) | ≥868（≥10.9） | ≥1114（≥14） | 263-287（33-36） | 100 |
| 9 | N33M | 1130-1180(11.3-1.8) | ≥836（≥10.5） | ≥1114（≥14） | 247-270（31-34） | 100 |
| 10 | N30M | 1080-1130(10.8-11.3) | ≥796（≥10） | ≥1114（≥14） | 223-247（28-31） | 100 |
| No | Grade | Magnetic properties of H-series Magnet |
Max Working Temp Tw（℃） | |||
| Remanence,Br mT or kGs | Coercivity,Hcb kA/m or kOe | Intrinsic Coercivity,Hcj kA/m or kOe | Maximium Energy Product,(BH)max kJ/m³ or kOe | |||
| 1 | N52H | 1420-1470(14.2-14.7) | ≥1050（≥13.2） | ≥1353（≥17） | 398-422（50-53） | 120 |
| 2 | N50H | 1400-1450(14.0-14.5) | ≥1035（≥13.0） | ≥1353（≥17） | 382-406（48-51） | 120 |
| 3 | N48H | 1380-1430(13.8-14.3) | ≥1035（≥13.0） | ≥1353（≥17） | 366-390（46-49） | 120 |
| 4 | N45H | 1330-1380(13.3-13.8) | ≥1010（≥12.7） | ≥1353（≥17） | 342-366（43-46） | 120 |
| 5 | N42H | 1280-1330(12.8-13.3) | ≥995（≥12.5） | ≥1353（≥17） | 318-342（40-43） | 120 |
| 6 | N40H | 1250-1280(12.5-12.8) | ≥940（≥11.8） | ≥1353（≥17） | 302-326（38-41） | 120 |
| 7 | N38H | 1220-1250(12.2-12.5) | ≥899（≥11.3） | ≥1353（≥17） | 287-310（36-39） | 120 |
| 8 | N35H | 1170-1220(11.7-12.2) | ≥876（≥11.0） | ≥1353（≥17） | 263-287（33-36） | 120 |
| 9 | N33H | 1130-1180(11.3-1.8) | ≥844（≥10.6） | ≥1353（≥17） | 247-271（31-34） | 120 |
| 10 | N30H | 1080-1130(10.8-11.3) | ≥812（≥10.2） | ≥1353（≥17） | 223-247（28-31） | 120 |
| Coating Type | Color | Thickness/um | SST/h | PCT/h | Working Temp/℃ | Performance features |
| Blue Zn | Blue/White | 5-10 | ≥48 | – | ＜160 | Medium corrosion resistance performance |
| Color Zn | Multiple colors | 5-10 | ≥72 | – | ＜160 | Medium corrosion resistance performance |
| NICUNI | Silver white | 10-30 | ≥72 | ≥96 | ＜200 | High corrosion resistance,thermal resistance and moisture resistance |
| PVD Aluminium | Silver white | 5-25 | ≥96 | ≥240 | ＜390 | High corrosion resistance and adhesiveness |
| Phosphate | – | – | – | – | ＜250 | Low cost,low corrosion resistance performance |
| Epoxy | Black/Grey | 10-30 | ≥480 | ≥96 | ＜180 | High corrosion resistance and insulation performance |
| Multi-layer coating | – | – | ≥1000 | ≥480 | – | Excellent corrosion resistance performance |
Notes
This performance might vary according to different dimension of product.
Multi-layer coating is a combination of different type of coatings, and its color,thickness and working temperature might varies from different combinations.
PCT test conditions: 121 celcius degrees, 100% humidity,2atms HAST test condition:132 celcius dergees, 95% humidity,2.7atms(mainly for evaluation of material weight loss)
HAST (Highly Accelerated Stress Test) condition: 132 celcius degrees, 95% humidity,2.7atms(mainly for evaluation of material weight loss)
Low grade magnet steel (N series / M series / H series) Production Process
The production process of NdFeB:
Ingredients → Quick setting → Hydrogen crushing → Jet mill → Forming → Sintering & aging → Inspection → Finish
Grain boundary diffusion → surface treatment → inspection → packaging → delivery
Low grade magnet steel (N series / M series / H series) Executive Standard
ISO9001、ISO14001、IATF16949、ISO45001
Low grade magnet steel (N series / M series / H series) Production Equipments
Automatic spraying coating line
Jet milling
Multiple wire cutting
Hydrogen decrepitation furnace
Continuous sintering stove
Strip casting furnace
AMT-4A magnetic property measurement equipment
EHS-222MD HAST (Japan)
HELOS-BFS LASER particle size measurement equipment (Germany)
HIRST-PFM12 pulse magnetic measurement equipment (UK)
PSL-2J High-Low temperature environment testing equpment (Japan)
SP3020 Automatic image measuring apparatus
UItima Expert Plasma Spectrometer (France)
Related Products
Ketian Magnet's high-grade magnets have excellent high temperature characteristics and are in the leading position in the industry in terms of consistency and stability. There are a wide range of customer bases and application cases in the fields of automobiles, industrial motors, compressors, generators, etc. 
Double high grade magnet steel (high remanence / high coercive force)
With the continuous strengthening of the protection of rare earth resources and the development of downstream applications, sintered NdFeB magnetic steel is facing new challenges. Ketian Magnet's Shuanggao grade magnetic steel adopts the latest grain boundary diffusion process and obtains the characteristics of double high remanence and coercivity with limited heavy rare earth input. Used in new energy vehicle drive motor (HEV / EV), inverter air conditioner compressor, various servo motors and other industries. While continuously developing high-end products, it also contributes to the protection of rare earth resources.
Ketian Magnet has accumulated rich experience in magnetic steel components, and can provide customers with value-added services such as the bonding and assembly of magnetic steel and magnetic steel, magnetic steel and other components. At present, the products are widely used in wind power generation, new energy vehicles, industrial motors and other fields, and are well received and trusted by customers. 
Ms.He
电话：0574-83005030
QQ：2881058206
邮箱：heyl01@jtgroup.com.cn
Mr.Chen
电话：0574-83005030
QQ：2881058226
邮箱：chenxb@jtgroup.com.cn
Ms.Song
电话：0574-83005030
QQ：2881058144
邮箱：songw@jtgroup.com.cn
