Customized High Quality Arc Magnet
Automatic Float Valve,Trunnion Ball Valve,Stellite Spraying Ball Valve,Double Block and Bleed Valves Yuyao Gaobao Sanitary Ware Factory , https://www.gurberry.com
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
Â
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!
Â
Contact us:
Â
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
Â
Contact person:Julia FungÂ
Tel:+86-574-88229324-811
Â
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
Â
 Welcome to contact with us!
Â
Â
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
1020-1080Â (10.2-10.8)
≥  764
( ≥  9.6)≥  1990
( ≥  25)207-231
(26-29)180Â deg
30UH
1080-1130Â (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
1080-1130Â (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
24Â kg/mm2
Compressive Strength
80Â kg/mm2
Electrical Resistivity
160 µ -ohm-cm/cm2
Density
7.4-7.55Â g/cm3
Vickers Hardness
500Â -Â 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, Â Red, Â Grey
Excellent Against Humidity
&  Salt Spray
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.
FDAÂ Approved.
Â
Â