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Stable Performance Sintered Neodymium NdFeB Magnets N35-N52 Rare Earth Magnets

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Stable Performance Sintered Neodymium NdFeB Magnets N35-N52 Rare Earth Magnets

Certification : ISO9001

Price : As negotiation

MOQ : 100pcs

Packaging Details : cartons,pallets

Delivery Time : 20-25days

Payment Terms : T/T L/C

Supply Ability : 100 tons per month for NdFeB magnet

Magnetic Performance : Stable

Corrosion Resistance : High

Temperature Resistance : High

Grade : N35-N52

Pull Force : High

Application : Widely Used

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Introduction

Neodymium Iron Boron (NdFeB) or Neodymium magnets are extremely strong for their size. Shapes include rings, blocks, discs and custom.

To prevent unwanted oxidation, neodymium magnets are usually finished with a zinc, nickel or epoxy coating.

Manufacturing - In general, the elements are melted together and milled into a powder that is dry-pressed to shape in the presence of a magnetic field.

The material is then sintered, ground to dimension, magnetized and tested. They are called “rare earth” magnets because the elements of neodymium are classified as such in the lanthanides section of the Periodic Table of the Elements.

Physical Properties of Sintered Neodymium Magnet

Parameter Name Parameter Values Unit
Curie Temperature 310～380 ℃
Relative Recoil Permeability 1.02～1.05 　
Reversible Temperature Coefficient of Br (20~100℃) -0.09～-0.13 %/℃
Reversible Temperature Coefficient of Hcj (20~100℃) -0.4～-0.7 %/℃
Density 7.50～7.70 g/cm3
Vickers Hardness 550～700 　
Bending Strength -0.09～-0.13 MPa
Tensile Strength ≥80 MPa
Compressive Strength 800 ~1050 MPa
Electric Resistivity 150 μΩ·cm
Thermal Conductivity 8～10 W/(M·℃)
Coefficient of Thermal Expansion
(Parallel to the orientation)		 5 10-6/K
Coefficient of Thermal Expansion
(vertical to the orientation)		 -1.5 10-6/K
Young's Modulus 150～200 GPa
Specific Heat(20℃～320℃) 3.0～4.6 J/(g·k)
weight loss(low weight loss products) ≤2 mg/cm2

Magnetic Properties of Sintered Neodymium Magnet

Grade Remanence Coercivity Intrinsic Coercivity Max Energy Product Working Temp
(Br) (HcB) (HcJ) (BH)max Tw
　 　 KGs T KOe KA/m KOe KA/m MGOe KJ/m³ ℃
N
Series		 N35 11.7-12.2 1.17-1.22 ≥10.9 ≥868 ≥12 ≥955 33-36 263-287 ≤80
N38 12.2-12.5 1.22-1.25 ≥11.3 ≥899 ≥12 ≥955 36-39 287-310 ≤80
N40 12.5-12.8 1.25-1.28 ≥11.4 ≥907 ≥12 ≥955 38-41 302-326 ≤80
N42 12.8-13.2 1.28-1.32 ≥11.5 ≥915 ≥12 ≥955 40-43 318-342 ≤80
N45 13.2-13.8 1.32-1.38 ≥11.6 ≥923 ≥12 ≥955 43-46 342-366 ≤80
N48 13.8-14.2 1.38-1.42 ≥11.6 ≥923 ≥12 ≥955 46-49 366-390 ≤80
N50 14.0-14.5 1.40-1.45 ≥10.0 ≥796 ≥11 ≥876 48-51 382-406 ≤60
N52 14.3-14.8 1.43-1.48 ≥10.0 ≥796 ≥11 ≥876 50-53 398-422 ≤60
M
Series		 35M 11.7-12.2 1.17-1.22 ≥10.9 ≥868 ≥14 ≥1114 33-36 263-287 ≤100
38M 12.2-12.5 1.22-1.25 ≥11.3 ≥899 ≥14 ≥1114 36-39 287-310 ≤100
40M 12.5-12.8 1.25-1.28 ≥11.6 ≥923 ≥14 ≥1114 38-40 302-326 ≤100
42M 12.8-13.2 1.28-1.32 ≥12.0 ≥955 ≥14 ≥1114 40-43 318-342 ≤100
45M 13.2-13.8 1.32-1.38 ≥12.5 ≥955 ≥14 ≥1114 43-46 342-366 ≤100
48M 13.6-14.3 1.36-1.43 ≥12.9 ≥1027 ≥14 ≥1114 46-49 366-390 ≤100
50M 14.0-14.5 1.40-1.45 ≥13.0 ≥1033 ≥14 ≥1114 48-51 382-406 ≤100
52M 14.3-14.8 1.43-1.48 ≥13.0 ≥995 ≥14 ≥1114 50-52 398-414 ≤100
H
Series		 33H 11.3-11.7 1.13-1.17 ≥10.6 ≥844 ≥17 ≥1353 31-34 263-287 ≤120
35H 11.7-12.2 1.17-1.21 ≥10.9 ≥869 ≥17 ≥1353 33-36 263-287 ≤120
38H 12.2-12.5 1.22-1.25 ≥11.3 ≥899 ≥17 ≥1353 36-39 287-310 ≤120
40H 12.5-12.8 1.25-1.28 ≥11.6 ≥923 ≥17 ≥1353 38-41 302-326 ≤120
42H 12.8-13.2 1.28-1.32 ≥12.0 ≥955 ≥17 ≥1353 40-43 318-342 ≤120
45H 13.0-13.6 1.30-1.36 ≥12.1 ≥963 ≥17 ≥1353 43-46 326-358 ≤120
48H 13.7-14.3 1.37-1.43 ≥12.5 ≥955 ≥17 ≥1274 46-49 366-390 ≤120
SH
Series		 30SH 10.8-11.3 1.08-1.13 ≥10.1 ≥804 ≥20 ≥1592 28-31 233-247 ≤150
33SH 11.3-11.7 1.13-1.17 ≥10.6 ≥844 ≥20 ≥1592 31-34 247-271 ≤150
35SH 11.7-12.2 1.17-1.22 ≥11.0 ≥876 ≥20 ≥1592 33-36 263-287 ≤150
38SH 12.2-12.5 1.22-1.25 ≥11.4 ≥907 ≥20 ≥1592 36-39 287-310 ≤150
40SH 12.5-12.8 1.25-1.28 ≥11.8 ≥939 ≥20 ≥1592 38-41 302-326 ≤150
42SH 12.8-13.2 1.28-1.32 ≥12.4 ≥987 ≥20 ≥1592 40-43 318-342 ≤150
45SH 13.2-13.8 1.32-1.38 ≥12.6 ≥1003 ≥20 ≥1592 43-46 342-366 ≤150
48SH 13.7-14.3 1.37-1.43 ≥12.6 ≥1003 ≥20 ≥1592 46-49 366-390 ≤150
UH
Series		 30UH 10.8-11.3

Product Tags:

Sintered Neodymium NdFeB Magnets

      

Sintered N52 Rare Earth Magnets

      

Neodymium NdFeB Magnets N35

      
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