Cast Alnico Magnets,Eclipse Magnetics

Cast Alnico Magnets From Eclipse Magnetics

1 - 877 - 487 - 7880
Cast Alnico Magnets

 
Key Features
  • Using patterns and simple moulding techniques, Alnico magnets can be cast to form a vast range of complex shapes and sizes at an economical cost
  • Eclipse Magnetics Alnico magnets are ideal for high temperature applications up to 550ºC
  • Alnico is very stable, has good corrosion resistance and a typical hardness of 50 Rockwell C. Once cast, the material is so hard that the only machining possible is grinding
  • Cast Alnico represents the most versatile magnet material available. The range of properties can be accurately designed for specific applications by changes to element analysis and heat treatment.
Typical Applications
  • ABS braking system magnets
  • ABS braking system magnets
  • Reed switch operating magnets
  • Electricity meter damping magnets
  • Holding/clamping applications
  • Microwave applications
  • Weighing scale damping magnets
  • Electropermanent systems
  • Calibration magnets
  • Heat treatment jigs and fixtures
Eclipse Magnetics are continually improving their capability to extend the range from traditional Alnico Magnets.

Material Grade / Specification - Nominal Chemical Composition
 
Al Ni Co Cu Ti Si S Nb Fe US equivalent
ALNI 13 26 0.5 4 - - 0.2 - BAL Alnico 1
ALNICO 9.8 19 12 6 0.5 - 0.2 - BAL Alnico 2
Alcomax 2 8.1 12 23 4.5 0.5 0.3 0.2 - BAL Alnico 5C
Alcomax 3 8.3 13.5 24.5 3 - 0.3 0.2 0.5 BAL Alnico 5
Alcomax 4 7.8 14.5 25 3 0.5 0.3 0.2 1.7 BAL Alnico 6
Alcomax 3 Semi - columnar 8.3 13.5 24.5 3 - 0.3 0.2 0.5 BAL Alnico 5DG
Columax 8.3 13.5 24.5 3 - 0.3 0.2 0.5 BAL Alnico 5-7
Hycomax 2 7.4 14.5 31 3 4 0.1 0.2 2 BAL Alnico 8
Hycomax 3 7 14.6 35.1 3.1 6.1 0.1 0.2 - BAL Alnico 8
Hycomax 3HE 7 13.2 38 3 6.3 0.1 0.2 - BAL Alnico 8HE

Cobalt Steel Material Grade/Specification - Nominal Chemical Composition
 
CO Cr W C Mo Fe
15% Cobalt Steel 15 9.7 - 1 1.4 BAL
35% Cobalt Steel 35 5.1 5.1 0.9 - BAL

Typical Magnetic Performance Range
 
Remanence Br (gauss) Remanence Telsa Coercivity Hc (oersted) Coercivity KA/m Max. energy product (BH) Ma Mgo Max. energy product Kj/m3
ALNI 6000 0.6 470 37.3 1.2 9.6
ALNICO 7900 0.8 490 38.9 1.7 13.1
Alcomax 2 12800 1.3 590 47 5 39.8
Alcomax 3 12300 1.2 635 50.5 5.2 41.4
Alcomax 4 11250 1.1 725 57.5 4.3 33.8
Alcomax 3 semi - columnar 13100 1.3 700 55.7 5.8 46.2
Columax 13100 1.3 720 57.3 6.8 56.7
Hycomax 2 8250 0.8 1125 89.3 3.8 29.8
Hycomax 3 8500 0.9 1475 117.4 4.9 39
Hycomax 3HE 8500 0.9 1550 123.4 5.4 43
15% Cobalt Steel 8200 0.8 176 14 0.6 4.9
35% Cobalt Steel 9000 0.9 251 20 1 7.5

Demagnetisation Curves for Cast Alnico
Notes for tables - Cast Alnico
In the case of anisotropic materials, the values quoted are along the magnetic axis.
The properties quoted are average values in most cases determined by a statistical survey of production magnets. Materials other than those listed with intermediate or unusual magnetic properties can be developed by request - e.g. there is still occasional demand for intermediate grades of cobalt steel.

Site Designed By Panther Marketing