D20X5 Black Epoxy Coating N38 Ring Magnet

Model NO.: D205C38B
Tensile Strength: 8.0kg/mm2
Material: Neodymium,Iron, Boron
MOQ: 1000 PCS
Lead Time: 20 Days
Shipment: Accept Ship by Air
Trademark: XL-Magnet
Transport Package: 136 PCS Per Box
Specification: 20mm Dia x5mm T hole5mm countersunk10
Origin: China
HS Code: 850511

Product Description : 
D20X5 Black Epoxy Coating N38 Ring Magnet
D20X5 Black Epoxy Coating N38 Ring Magnet

Magnet dimension  Dia 25x5mm
Special  hole 5mm with countersunk 10mm
Tolerance  + / - 0.1mm
Grade  N38
Surface Plating  Black Epoxy Coating
magnet Direction  through thickness 5mm
Net weight  13 g
Surface field   3500 Gauss
Max working Temp.   80 ºC
Br Max  12100 Gauss
Bh Max  35 MGOe
Packing  inner box, cartons
Shipment  By air or by sea
MOQ  1000 pieces
Lead time  20 days


Material Detail 
Standard Specification for Sunny Fore Sintered NdFeB Magnets:

Grade Remanence (Br) Coercive Force     (Hcb) Intrinsic Coercive Force(Hcj) Max Energy Product  (BH) max Working temp.
KGs T Koe KA/m KOe KA/m MGoe Kj/m3  ºC 
N35 12.2-11.8 1.22-1.18 ≥10.8 ≥860 ≥12.0 ≥960 36-33 286-260 ≤80
N38 12.6-12.2 1.26-1.22 ≥10.8 ≥860 ≥12.0 ≥960 38-36 303-286 ≤80
N40 12.9-12.6 1.29-1.26 ≥10.8 ≥860 ≥12.0 ≥960 40-38 318-303 ≤80
N42 13.2-12.8 1.32-1.28 ≥11.0 ≥875 ≥12.0 ≥960 42-40 334-318 ≤80
N45 13.8-13.3 1.38-1.33 ≥11.0 ≥875 ≥12.0 ≥960 45-43 358-342 ≤80
N48 14.1-13.7 1.41-1.37 ≥10.5 ≥836 ≥12.0 ≥960 49-46 390-358 ≤80
N50 14.3-14.0 1.43-1.40 ≥10.5 ≥836 ≥11.0 ≥960 51-47 406-374 ≤80
N52 14.5-14.2 1.45-1.42 ≥10.5 ≥836 ≥11.0 ≥875 53-49 422-390 ≤80
N33M 11.8-11.4 1.18-1.14 ≥10.3 ≥820 ≥14.0 ≥875 33-31 263-247 ≤100
N35M 12.2-11.8 1.22-11.8 ≥10.8 ≥860 ≥14.0 ≥1114 36-33 286-260 ≤100
N38M 12.6-12.2 1.26-12.2 ≥11.0 ≥875 ≥14.0 ≥1114 38-36 303-286 ≤100
N40M 12.9-12.6 1.29-1.26 ≥11.0 ≥875 ≥14.0 ≥1114 40-38 318-303 ≤100
N42M 13.2-12.8 1.32-1.28 ≥11.5 ≥910 ≥14.0 ≥1114 42-40 334-318 ≤100
N45M 13.8-13.3 1.38-1.33 ≥11.8 ≥938 ≥14.0 ≥1114 45-43 358-334 ≤100
N48M 14.1-13.7 1.41-1.37 ≥11.8 ≥938 ≥14.0 ≥1114 49-46 390-358 ≤100
N50M 14.3-14.0 1.43-1.40 ≥11.8 ≥938 ≥13.5 ≥1075 51-47 406-374 ≤100
N30H 11.4-10.8 1.14-1.08 ≥9.8 ≥780 ≥17.0 ≥1356 30-28 239-223 ≤120
N33H 11.8-11.4 1.18-1.14 ≥10.3 ≥820 ≥17.0 ≥1356 33-31 263-247 ≤120
N35H 12.2-11.8 1.22-1.18 ≥10.8 ≥860 ≥17.0 ≥1356 36-33 286-260 ≤120
N38H 12.6-12.2 1.26-1.22 ≥11.0 ≥875 ≥17.0 ≥1356 38-36 303-286 ≤120
N40H 12.9-12.6 1.29-1.26 ≥11.0 ≥875 ≥17.0 ≥1356 40-38 318-303 ≤120
N42H 13.2-12.8 1.32-1.28 ≥11.5 ≥915 ≥17.0 ≥1356 42-40 334-318 ≤120
N45H 13.8-13.3 1.38-1.33 ≥11.8 ≥938 ≥17.0 ≥1356 46-43 358-342 ≤120
N46H 13.9-13.6 1.39-1.36 ≥12.3 ≥980 ≥17.0 ≥1356 47-44 374-345 ≤120
N48H 14.1-13.7 1.41-1.37 ≥12.6 ≥1010 ≥16.0 ≥1270 49-46 390-358 ≤120
N30SH 11.4-10.8 1.14-1.08 ≥9.8 ≥780 ≥20.0 ≥1600 30-28 239-223 ≤150
N33SH 11.8-11.4 1.18-1.14 ≥10.3 ≥820 ≥20.0 ≥1600 33-31 263-247 ≤150
N35SH 12.2-11.8 1.22-1.18 ≥10.8 ≥860 ≥20.0 ≥1600 36-33 286-260 ≤150
N38SH 12.6-12.2 1.26-1.22 ≥11.0 ≥875 ≥20.0 ≥1600 38-36 303-286 ≤150
N40SH 12.9-12.6 1.29-1.26 ≥11.0 ≥875 ≥20.0 ≥1600 40-38 318-303 ≤150
N42SH 13.2-12.8 1.32-1.28 ≥11.5 ≥915 ≥20.0 ≥1600 42-40 334-318 ≤150
N45SH 13.6-13.3 1.36-1.33 ≥11.8 ≥938 ≥20.0 ≥1600 46-42 358-334 ≤150
N28UH 10.8-10.4 1.08-1.04 ≥9.3 ≥740 ≥25.0 ≥2000 28-26 223-207 ≤180
N30UH 11.4-10.8 1.14-1.08 ≥9.8 ≥780 ≥25.0 ≥2000 30-28 239-223 ≤180
N33UH 11.8-11.4 1.18-1.14 ≥10.3 ≥820 ≥25.0 ≥2000 33-31 263-247 ≤180
N35UH 12.2-11.8 1.22-1.18 ≥10.8 ≥860 ≥25.0 ≥2000 36-33 286-260 ≤180
N38UH 12.6-12.2 1.26-1.22 ≥11.0 ≥875 ≥24.0 ≥1910 38-36 286-260 ≤180
N28EH 10.8-10.4 1.08-1.04 ≥9.3 ≥740 ≥30.0 ≥2400 28-26 223-207 ≤200
N30EH 11.4-10.8 1.14-1.08 ≥9.8 ≥780 ≥30.0 ≥2400 30-28 239-223 ≤200
N33EH 11.8-11.4 1.18-1.14 ≥10.3 ≥820 ≥30.0 ≥2400 33-31 263-274 ≤200
N35EH 12.2-11.8 1.22-1.18 ≥10.8 ≥860 ≥30.0 ≥2400 36-33 286-270 ≤200

Characteristics of Surface Treatment:
Performance Zn Double Ni NiCuNi Electroless Ni Epoxy
Colour White Silver Silver Silver Black
Thickness(µ M) 8-15 15-20 15-30 10-20 10-30
Pressure Cooker Test  (120C,2atm,10%RH) >15hr >24hr >48hr >24hr >24hr
Salt Spray Test  (5%NaCl,35ºC,1.2atm) >24hr >24hr >48hr >72hr >100hr
Physical Properties:
Tem.Coeff.of Br: -0.09~-0.11%/ºC
Density: 7.5~7.6g/m3
Vickers hardness: 600Hv
Tensile Strength: 8.0kg/mm2
Specific Heat: 0.12kcal(kg,ºC)
Young's.Modulus: 1.6x1011N/m2
Poisson's.Ratio: 0.24
Curie Temperature: 310-340ºC
Temp.Coeff.of Hc: 0.5~-0.60%/ºC
Electrical Resistivity: 114µΩ.cm
Flexural Strength: 25kg/mm
Coeff.of Thermal Expansion: 4x10-6/ºC
Thermal Conductivity: 7.7kcal(m.h.ºC)
Rigidity: 0.64N/m2
Compressibility: 9.8x10-2m2/N
Relative Recoil Permeability: 1.05

Shipment and Packing

D20X5 Black Epoxy Coating N38 Ring Magnet

Air shipment Inner Box Air carton
Quantity 136 pieces 680 pieces
Size: 12X9X5cm 29X23X14cm
N.W. 1.8 kgs 8.8 kgs
G.W. 3.7 kgs 10.8 kgs
 
Sea Shipment inner box sea caton
Quantity 136 pieces  816 pieces
Size: 12X9X6cm 28X14X13cm
N.W. 1.8 kgs 10.6 kgs
G.W. 2.0 kgs 11.0 kgs 


Magnet is special goods for shipment , they need to make special packing when shippment is ship by air,

sunny fore have 9 years export experience and transportaion experience,
We will arrange air shipment in good condtion.

 

 Quality Control:

D20X5 Black Epoxy Coating N38 Ring Magnet

FAQ
 What information do I need to supply when I have an inquiry?
SunnyFore--If you have any inquiry , please kindly advise the following items:
Dimension , Sizes, Shape and drawing with tolerance.
Material grade or magnetic properties
Magnetic direction , quantity , Surface coating (if necessary)
Any special packing, delivery or other requirements.

Sunnyfore qualified by ISO9001:2008, RoHs, REACH, MSDS

D20X5 Black Epoxy Coating N38 Ring Magnet
 


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D20X5 Black Epoxy Coating N38 Ring Magnet


D20X5 Black Epoxy Coating N38 Ring Magnet
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