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Home>>NDFEB MAGNET
 
  

Sintered rare earth magnets are manufactured by a powder metallurgical process which involves the sintering of powder compacts under vacuum. Magnets may be produced in large blocks for subsequent processing, or as tailor made components made die pressing. Coatings may be applied depending on the expected environment.　  

Super-Strength Rare Earth Magnet----Sintered NdFeB magnets, have the characteristics of :

  • Super strong Br Resident induction.Excellent demagnetization resistance capability.

  • Good Price relative to its high magnetic properties.

  • Coating is needed for NdFeB

  • Surface Treatment Method: Type Information
    Metallic Zinc, Nickel, Nickel+Nickel, Copper+Nickel, Nickel+Copper+Nickel,
    Gold, Organic Epoxy, Nickel+Epoxy coating
    Temporary Surface: Passivation

Magnetic Properties of Sintered NdFeB Magnets

 

  Remanence
Br 		Coercive Force
Hcb 		Intrinsic Coercive force
Hci 		Max Energy Product
(BH) max

 

 Highest Work temperature
No Material KG T KOe KA/m KOe KA/m MGOe KJ/m ℃
1 N-33 11.4-11.8 1.14-1.18 ≥10.5 ≥836 ≥12 ≥955 31-33 247-263 80
2 N-35 11.4-11.8 1.18-1.28 ≥10.8 ≥836 ≥12 ≥955 33-36 263-287 80
3 N-38 11.8-12.3 1.18-1.28 ≥10.8 ≥860 ≥12 ≥955 36-39 287-310 80
4 N-40 12.7-12.9 1.27-1.29 ≥11.0 ≥876 ≥12 ≥955 38-41 303-326 80
5 N-42 12.9-13.3 1.29-1.33 ≥10.5 ≥836 ≥12 ≥955 40-43 318-342 80
6 N-45 13.3-13.8 1.33-1.38 ≥9.5 ≥756 ≥12 ≥955 43-46 342-366 80
7 N48 13.7-14.2 1.37-1.42 10.5-13 836-1035 ≥11 ≥875 46-49 366-390 80
8 N50 13.9-14.5 1.39-1.45 10.5-13 836-1035 ≥11 ≥875 47-51 374-406 80
9 N-30M 10.8-11.4 1.08-1.14 ≥9.8 ≥780 ≥14 ≥1114 28-31 223-247 100
10 N-33M 11.4-11.8 1.14-1.18 ≥10.3 ≥820 ≥14 ≥1114 31-33 247-263 100
11 N-35M 11.8-12.3 1.18-1.23 ≥10.8 ≥860 ≥14 ≥1114 33-36 263-287 100
12 N-38M 12.3-12.7 1.23-1.27 ≥11.0 ≥876 ≥14 ≥1114 38-41 303-326 100
13 N-40M 12.7-12.9 1.27-1.29 ≥11.4 ≥907 ≥14 ≥1114 38-41 303-326 100
14 N42M 12.8-13.4 1.28-1.34 10.8-11.4 859-907 ≥14 ≥1114 40-43 319-343 100
15 N45M 13.3-13.8 1.33-1.38 12.4-13.4 987-1066 ≥14 ≥1114 43-46 343-366 100
16 N48M 13.7-14.2 1.37-1.42 12.8-13.8 1020-1098 ≥14 ≥1114 46-49 366-390 100
17 N-30H 10.8-11.4 1.08-1.14 ≥10.2 ≥812 ≥17 ≥1353 28-31 223-247 120
18 N-33H 11.4-11.8 1.14-1.18 ≥10.6 ≥844 ≥17 ≥1353 31-33 247-263 120
19 N-35H 11.8-12.3 1.18-1.28 ≥11.0 ≥876 ≥17 ≥1353 33-36 263-287 120
20 N-38H 12.3-12.7 1.23-1.27 ≥11.2 ≥890 ≥17 ≥1353 36-39 287-310 120
21 N-40H 12.7-12.9 1.27-1.29 ≥11.5 ≥915 ≥17 ≥1353 38-41 303-326 120
22 N-42H 12.8-13.4 1.28-1.34 ≥12 ≥955 ≥17 ≥1353 40-43 318-342 120
23 N-45H 13.3-13.8 1.33-1.38 ≥12.4 ≥986 ≥17 ≥1353 43-46 342-366 120
24 N-48H 13.6-14.2 1.36-1.42 ≥12.8 ≥1018 ≥16 ≥1273 45-49 358-390 120
25 N-30SH 10.8-11.4 1.081.14 ≥10.0 ≥796 ≥21 ≥1672 28-31 223-247 150
26 N-33SH 11.4-11.8 1.14-1.18 ≥10.5 ≥836 ≥21 ≥1672 31-34 247-276 150
27 N-35SH 11.8-12.3 1.18-1.23 ≥11.0 ≥876 ≥21 ≥1672 33-36 263-278 150
28 N-38SH 12.3-12.7 1.23-1.27 ≥11.4 ≥907 ≥21 ≥1672 36-39 278-310 150
29 N-42SH 12.8-13.4 1.28-1.34 ≥12 ≥955 ≥20 ≥1592 39-42 310-334 150
30 N-28UH 10.5-10.8 1.05-1.08 ≥9.5 ≥756 ≥21 ≥1672 26-29 207-231 180
31 N-30UH 10.8-11.4 1.08-1.14 ≥9.5 ≥756 ≥25 ≥1990   28-31 223-247 180
32 N-33UH 11.4-12.1 1.14-1.21 ≥10.1 ≥804 ≥25 ≥1990 31-34 247-271 180
33 N-35UH 11.7-12.4 1.17-1.24 ≥10.5 ≥836 ≥25 ≥1990 33-36 263-287 180
34 N-38UH 12.2-12.9 1.22-1.29 ≥11 ≥875 ≥25 ≥1990 36-39 287-310 180
35 N-40UH 12.5-13.3 1.25-1.33 ≥11.3 ≥899 ≥25 ≥1990 38-41 302-326 180
36 N-28EH 10.5-10.8 1.05-1.08 ≥9.5 ≥756 ≥25 ≥2388 26-29 207-231 200
37 N-30EH 10.8-11.4 1.08-1.14 ≥9.5 ≥756 ≥30 ≥2388 28-31 223-241 200
38 N-33EH 11.4-12.1 1.14-1.21 ≥10.7 ≥852 ≥30 2388 31-35 247-379 200
39 N-35EH 11.7-12.4 1.17-1.24 ≥10.9 ≥868 ≥30 ≥2388 33-37 263-295 200
40 N-38EH 12.2-12.9 1.22-1.29 ≥11.5 ≥915 ≥30 ≥2388 36-40 287-318 200

 

Physical and Mechanical Properties

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