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Dailymag
Magnetics offer a full
line of Permanent Magnets,
Magnetic Assemblies (Magnetic
Tools) and Magnetic
equipments in China.
China NdFeB
Magnets, China NdFeB Magnet, NdFeB Magnets, Neodymium Magnets,
Bonded NdFeB Magnet, Bonded NdFeB Magnets, Sintered NdFeB Magnet,
Sintered NdFeB Magnets manufacturer, Supplier, Factory, Exporter in
china
China Neodymium
Magnets, China Neodymium Magnet, Neodymium Magnets, Neodymium
Magnets, Bonded Neodymium Magnet, Bonded Neodymium Magnets,
Sintered Neodymium Magnet, Sintered Neodymium Magnets manufacturer,
Supplier, Factory, Exporter in china
Magnetic properties of Sintered
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/m3
(MGOe)
|
Tw
|
|
N35
|
1170-1220
(11.7-12.2)
|
≥ 868
( ≥ 10.9)
|
≥ 955
( ≥ 12)
|
263-287
(33-36)
|
80 ℃
|
|
N38
|
1220-1250
(12.2-12.5)
|
≥ 899
( ≥ 11.3)
|
≥ 955
( ≥ 12)
|
287-310
(36-39)
|
80 ℃
|
|
N40
|
1250-1280
(12.5-12.8)
|
≥ 907
( ≥ 11.4)
|
≥ 955
( ≥ 12)
|
302-326
(38-41)
|
80 ℃
|
|
N42
|
1280-1320
(12.8-13.2)
|
≥ 915
( ≥ 11.5)
|
≥ 955
( ≥ 12)
|
318-342
(40-43)
|
80 ℃
|
|
N45
|
1320-1380
(13.2-13.8)
|
≥ 923
( ≥ 11.6)
|
≥ 955
( ≥ 12)
|
342-366
(43-46)
|
80 ℃
|
|
N48
|
1380-1420
(13.8-14.2)
|
≥ 923
( ≥ 11.6)
|
≥ 876
( ≥ 12)
|
366-390
(46-49)
|
80 ℃
|
|
N50
|
1400-1450
(14.0-14.5)
|
≥ 796
( ≥ 10.0)
|
≥ 876
( ≥ 11)
|
382-406
(48-51)
|
60 ℃
|
|
N52
|
1430-1480
(14.3-14.8)
|
≥ 796
( ≥ 10.0)
|
≥ 876
( ≥ 11)
|
398-422
(50-53)
|
60 ℃
|
|
30M
|
1080-1130
(10.8-11.3)
|
≥ 796
( ≥ 10.0)
|
≥ 1114
( ≥ 14)
|
223-247
(28-31)
|
100 ℃
|
|
33M
|
1130-1170
(11.3-11.7)
|
≥ 836
( ≥ 10.5)
|
≥ 1114
( ≥ 14)
|
247-263
(31-33)
|
100 ℃
|
|
35M
|
1170-1220
(11.7-12.2)
|
≥ 868
( ≥ 10.9)
|
≥ 1114
( ≥ 14)
|
263-287
(33-36)
|
100 ℃
|
|
38M
|
1220-1250
(12.2-12.5)
|
≥ 899
( ≥ 11.3)
|
≥ 1114
( ≥ 14)
|
287-310
(36-39)
|
100 ℃
|
|
40M
|
1250-1280
(12.5-12.8)
|
≥ 923
( ≥ 11.6)
|
≥ 1114
( ≥ 14)
|
302-326
(38-41)
|
100 ℃
|
|
42M
|
1280-1320
(12.8-13.2)
|
≥ 955
( ≥ 12.0)
|
≥ 1114
( ≥ 14)
|
318-342
(40-43)
|
100 ℃
|
|
45M
|
1320-1380
(13.2-13.8)
|
≥ 995
( ≥ 12.5)
|
≥ 1114
( ≥ 14)
|
342-366
(43-46)
|
100 ℃
|
|
48M
|
1360-1430
(13.6-14.3)
|
≥ 1027
( ≥ 12.9)
|
≥ 1114
( ≥ 14)
|
366-390
(46-49)
|
100 ℃
|
|
50M
|
1400-1450
(14.0-14.5)
|
≥ 1033
( ≥ 13.0)
|
≥ 1114
( ≥ 14)
|
382-406
(48-51)
|
100 ℃
|
|
30H
|
1080-1130
(10.8-11.3)
|
≥ 796
( ≥ 10.0)
|
≥ 1353
( ≥ 17)
|
223-247
(28-31)
|
120 ℃
|
|
33H
|
1130-1170
(11.3-11.7)
|
≥ 836
( ≥ 10.5)
|
≥ 1353
( ≥ 17)
|
247-271
(31-34)
|
120 ℃
|
|
35H
|
1170-1220
(11.7-12.2)
|
≥ 868
( ≥ 10.9)
|
≥ 1353
( ≥ 17)
|
263-287
(33-36)
|
120 ℃
|
|
38H
|
1220-1250
(12.2-12.5)
|
≥ 899
( ≥ 11.3)
|
≥ 1353
( ≥ 17)
|
287-310
(36-39)
|
120 ℃
|
|
40H
|
1250-1280
(12.5-12.8)
|
≥ 923
( ≥ 11.6)
|
≥ 1353
( ≥ 17)
|
302-326
(38-41)
|
120 ℃
|
|
42H
|
1280-1320
(12.8-13.2)
|
≥ 955
( ≥ 12.0)
|
≥ 1353
( ≥ 17)
|
318-342
(40-43)
|
120 ℃
|
|
45H
|
1300-1360
(13-13.6)
|
≥ 963
( ≥ 12.1)
|
≥ 1353
( ≥ 17)
|
326-358
(43-46)
|
120 ℃
|
|
48H
|
1370-1430
(13.7-14.3)
|
≥ 995
( ≥ 12.5)
|
≥ 1353
( ≥ 17)
|
366-390
(46-49)
|
120 ℃
|
|
30SH
|
1080-1130
(10.8-11.3)
|
≥ 804
( ≥ 10.1)
|
≥ 1592
( ≥ 20)
|
223-247
(28-31)
|
150 ℃
|
|
33SH
|
1130-1170
(11.3-11.7)
|
≥ 844
( ≥ 10.6)
|
≥ 1592
( ≥ 20)
|
247-271
(31-34)
|
150 ℃
|
|
35SH
|
1170-1220
(11.7-12.2)
|
≥ 876
( ≥ 11.0)
|
≥ 1592
( ≥ 20)
|
263-287
(33-36)
|
150 ℃
|
|
38SH
|
1220-1250
(12.2-12.5)
|
≥ 907
( ≥ 11.4)
|
≥ 1592
( ≥ 20)
|
287-310
(36-39)
|
150 ℃
|
|
40SH
|
1240-1280
(12.5-12.8)
|
≥ 939
( ≥ 11.8)
|
≥ 1592
( ≥ 20)
|
302-326
(38-41)
|
150 ℃
|
|
42SH
|
1280-1320
(12.8-13.2)
|
≥ 987
( ≥ 12.4)
|
≥ 1592
( ≥ 20)
|
318-342
(40-43)
|
150 ℃
|
|
45SH
|
1320-1380
(13.2-13.8)
|
≥ 1003
( ≥ 12.6)
|
≥ 1592
( ≥ 20)
|
342-366
(43-46)
|
150 ℃
|
|
28UH
|
1020-1080 (10.2-10.8)
|
≥ 764
( ≥ 9.6)
|
≥ 1990
( ≥ 25)
|
207-231
(26-29)
|
180 ℃
|
|
30UH
|
1080-1130 (10.8-11.3)
|
≥ 812
( ≥ 10.2)
|
≥ 1990
( ≥ 25)
|
223-247
(28-31)
|
180 ℃
|
|
33UH
|
1130-1170
(11.3-11.7)
|
≥ 852
( ≥ 10.7)
|
≥ 1990
( ≥ 25)
|
247-271
(31-34)
|
180 ℃
|
|
35UH
|
1180-1220
(11.8-12.2)
|
≥ 860
( ≥ 10.8)
|
≥ 1990
( ≥ 25)
|
263-287
(33-36)
|
180 ℃
|
|
38UH
|
1220-1250
(12.2-12.5)
|
≥ 876
( ≥ 11.0)
|
≥ 1990
( ≥ 25)
|
287-310
(36-39)
|
180 ℃
|
|
40UH
|
1240-1280
(12.5-12.8)
|
≥ 899
( ≥ 11.3)
|
≥ 1990
( ≥ 25)
|
302-326
(38-41)
|
180 ℃
|
|
28EH
|
1040-1090
(10.4-10.9)
|
≥ 780
( ≥ 9.8)
|
≥ 2388
( ≥ 30)
|
207-231
(26-29)
|
200 ℃
|
|
30EH
|
1080-1130 (10.8-11.3)
|
≥ 812
( ≥ 10.2)
|
≥ 2388
( ≥ 30)
|
223-247
(28-31)
|
200 ℃
|
|
33EH
|
1130-1170
(11.3-11.7)
|
≥ 836
( ≥ 10.5)
|
≥ 2388
( ≥ 30)
|
247-271
(31-34)
|
200 ℃
|
|
35EH
|
1170-1220
(11.7-12.2)
|
≥ 876
( ≥ 11.0)
|
≥ 2388
( ≥ 30)
|
263-287
(33-36)
|
200 ℃
|
|
38EH
|
1220-1250
(12.2-12.5)
|
≥ 899
( ≥ 11.3)
|
≥ 2388
( ≥ 30)
|
287-310
(36-39)
|
200 ℃
|
Physical and Mechanical Properties of Sintered
NdFeB 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
|
7.4-7.55 g/cm3
|
|
Vickers Hardness
|
500 - 600
|
Available coatings for Sintered
NdFeB magnet :
|
Available Coatings:
|
|
Su rface
|
Coating
|
Thickness (Microns)
|
Color
|
Resistance
|
|
Passivation
|
|
1
|
Silver Grey
|
Temporary Protection
|
|
Nickel
|
Ni+Ni
|
10-20
|
Bright Silver
|
Excellent against Humidity
|
|
Ni+Cu+Ni
|
|
Zinc
|
Zn
|
8-20
|
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
|
10-20
|
Gold
|
Superior Against Humidity
|
|
Copper
|
Ni+Cu
|
10-20
|
Gold
|
Temporary Protection
|
|
Epoxy
|
Epoxy
|
15-25
|
Black, Red, Grey
|
Excellent Against Humidity
& Salt Spray
|
|
Ni+Cu+Epoxy
|
|
Zn+Epoxy
|
|
Chemical
|
Ni
|
10-20
|
Silver Grey
|
Excellent Against Humidity
|
|
Parylene
|
Parylene
|
5-20
|
Grey
|
Excellent Against Humidity, Salt Spray.
Superior Against Solvents, Gases, Fungi and Bacteria.
FDA Approved.
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