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You are here: Home » Products » ALNICo Magnet » Alnico magnets for guitar pickup/custom cast alnico magnet

Alnico magnets for guitar pickup/custom cast alnico magnet

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  • piece Promotional AlNiCo Magnet
  • 1 Promotional AlNiCo Magnet
  1. Alnico magnets are made of Aluminium, Nickel, Cobalt and Iron and have already been applied since 1930.
  2. Sometimes a few other elements such as copper, titanium and niobium are added.
  3. Alnico magnets have a maximum energy product of 1 to ± 9 MGOe
  4. and do not require coating when used under normal conditions.
  5. The maximum temperature of use is 450°C depending on the specification, dimensions and system design.
  6. Most of the Alnico magnets are caste and in this process the alloy,
  7. which is liquid, is poured into sand moulds at very high temperature.
  8. Some of these magnets are pressed and sintered.
  9. Casting Alnico can happen in complex forms, such as horseshoes for example.
  10. Sintered Alnico has slightly lower magnetic properties however they have better mechanical properties
  11. than caste alnico, with very small casting amounts during the casting process.
  12. Standard tolerance for grinded alnico is ±0.1 mm, depending on the size and shape.
  13. It is important (watch out!) that the length/diameter ratio is kept, this will prevent demagnetisation.
  14. The minimum dimension for a block magnet is 2 x 2 x 2 mm,
  15. whereas the maximum dimension for this type is 100 x 100 x 100 mm.
  16. The minimum dimension for a disc magnet is Ø 1 x 2 mm,
  17. whereas the maximum dimension for this type is Ø 100 x 100 mm.
  18. The minimum dimension for a ring magnet is Ø 5 x Ø 3.5 x 1 mm,
  19. whereas the maximum dimension for this type is Ø 200 x Ø* x 50 mm (* inside diameter in consultation).
Promotional AlNiCo Magnet
Grade Br HcB Hcj (BH)max Br Hcj Max Temp MMPA
Equivalents
KGs mT kOe Ka/m kOe Ka/m MGOe Kj/m³ TK(Br)%/K TK(Hcj)%/K ºC
ISOTROPIC CAST ALNICO
LN10 6.5 650 0.48 38 0.5 40 1.25 10 -0.035 -0.025 450 ALNICO3
LNG12 7.5 750 0.56 45 0.58 46 1.5 12 -0.03 -0.02 450 ALNICO2
LNGT18 5.5 550 1.13 90 1.21 97 2.25 18 -0.025 0.01 550 ALNICO8
ANISOTROPIC CAST ALNICO
LNG34 11 1100 0.63 50 0.65 52 4.25 34 -0.02 0.01 525  
ALNICO5
LNG37 11.8 1180 0.61 49 0.64 51 4.63 37 -0.02 0.01 525
LNG40 12 1200 0.63 50 0.65 52 5 40 -0.02 0.01 525
LNG44 12.5 1250 0.65 52 0.68 54 5.5 44 -0.02 0.01 525
LNGT34 11.5 1150 0.73 58 0.75 60 3.5 28 -0.02 0.03 525 ALNICO6
LNG52 13 1300 0.7 56 0.73 58 6.5 52 -0.02 0.03 525 ALNICO5DG
LNG60 13.5 1350 0.73 58 0.75 60 7.5 60 -0.02 0.03 525 ALNICO5-7
LNGT38 8 800 1.38 110 1.4 112 4.75 38 -0.025 0.01 550  
ALNICO8
LNGT40 8.5 850 1.44 115 1.46 117 5 40 -0.025 0.01 550
LNGT44 9 900 1.44 115 1.46 117 5.5 44 -0.025 0.01 550
LNGT36J 7.2 720 1.88 150 1.9 152 4.5 36 -0.025 0.01 550 ALNICO8HC
LNGT60 10 1000 1.38 110 1.4 112 7.5 60 -0.025 0.01 550  
ALNICO9

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