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Magnets

Cast Alnico Magnets from TyTek Industries

CA-2

Grade: Cast Alnico 2
Magnetic Properties 25°C C.G.S. Units S.I. Units
Residual Induction (Br) 7,200 Gauss 720 mT
Coercive Force (Hc) 560 Oersteds 45 kA/m
Intrinsic Coercive Force (Hci) 500 Oersteds 45 kA/m
Maximum Energy Product (BHmax) 1.60 MGOe 12.7 kJ/m³
Temperature Coefficient of Br -0.03%/°C
Temperature Coefficient of Hci -0.02%/°C
Relative Recoil Permeability 6.2 G/Oe
Curie Temperature 810°C
Physical Properties
Density 7.0 g/cm³
Thermal Expansion Coefficient 13 x 10-6 /°C
Electrical Resistivity* 65  Ωcm/cm²
Tensile Strength* 20 N/mm²
Flexural Strength* 50 N/mm²
Rockwell Hardness 45

*Reference Values dependent on size, shape, density, orientation and other characteristics

CA-3

Grade: Cast Alnico 3
Magnetic Properties 25°C C.G.S. Units S.I. Units
Residual Induction (Br) 7,000 Gauss 700 mT
Coercive Force (Hc) 475 Oersteds 38 kA/m
Intrinsic Coercive Force (Hci) 500 Oersteds 40 kA/m
Maximum Energy Product (BHmax) 1.60 MGOe 12.7 kJ/m³
Temperature Coefficient of Br -0.03%/°C
Temperature Coefficient of Hci -0.02%/°C
Relative Recoil Permeability 5.1 G/Oe
Curie Temperature 810°C

 

Physical Properties
Density 6.9 g/cm³
Thermal Expansion Coefficient 13 x 10-6 /°C
Electrical Resistivity* 60  ?cm/cm²
Tensile Strength* 80 N/mm²
Flexural Strength* 160 N/mm²
Rockwell Hardness 45

*Reference Values dependent on size, shape, density, orientation and other characteristics

CA-5

Grade: Cast Alnico 5
Magnetic Properties 25°C C.G.S. Units S.I. Units
Residual Induction (Br) 12,500 Gauss 1,250 mT
Coercive Force (Hc) 640 Oersteds 51 kA/m
Intrinsic Coercive Force (Hci) 640 Oersteds 51 kA/m
Maximum Energy Product (BHmax) 5.50 MGOe 44.0 kJ/m³
Temperature Coefficient of Br -0.02%/°C
Temperature Coefficient of Hci -0.02%/°C
Relative Recoil Permeability 3.7 G/Oe
Curie Temperature 860°C

 

Physical Properties
Density 7.3 g/cm³
Thermal Expansion Coefficient 11.5 x 10-6 /°C
Electrical Resistivity* 47  Ωcm/cm²
Tensile Strength* 40 N/mm²
Flexural Strength* 70 N/mm²
Rockwell Hardness 50

*Reference Values dependent on size, shape, density, orientation and other characteristics

 

CA-8

Grade: Cast Alnico 8
Magnetic Properties 25°C C.G.S. Units S.I. Units
Residual Induction (Br) 8,300 Gauss 830 mT
Coercive Force (Hc) 1,650 Oersteds 131 kA/m
Intrinsic Coercive Force (Hci) 1,650 Oersteds 131 kA/m
Maximum Energy Product (BHmax) 5.50 MGOe 43.8 kJ/m³
Temperature Coefficient of Br -0.025%/°C
Temperature Coefficient of Hci -0.01%/°C
Relative Recoil Permeability 2.0 G/Oe
Curie Temperature 860°C

 

Physical Properties
Density 7.3 g/cm³
Thermal Expansion Coefficient 11 x 10-6 /°C
Electrical Resistivity* 50  Ωcm/cm²
Tensile Strength* 60 N/mm²
Flexural Strength* 205 N/mm²
Rockwell Hardness 56

*Reference Values dependent on size, shape, density, orientation and other characteristics

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