Ferrite or Alnico can sometimes replace neodymium, but usually not as a direct one-for-one substitution. Learn when alternatives work, when NdFeB should stay, and what engineers must evaluate before redesigning a magnetic assembly.Read More

Alnico magnets are permanent magnets made primarily from iron, aluminum, nickel and cobalt. Compare Alnico grades, temperature stability, coercivity, applications, stock Alnico 5 magnets and when to choose Alnico vs. NdFeB, SmCo or ferrite.Read More

Compare common magnet shapes including discs, rods, rings, blocks, arc segments and pot magnets. Learn how geometry, magnetization direction, air gap, permeance coefficient, contact area and manufacturability affect field, pull force, sensing, motor performance and OEM magnet selection.Read More

Heat-resistant magnets must be selected by material, grade, HcJ, geometry and operating temperature—not temperature rating alone. Compare high-temperature NdFeB grades (M, H, SH, UH, EH and AH), ferrite and Alnico, and see how permeance coefficient, load line and demagnetization margin affect real high-heat performance.Read More

Alnico magnets are a strong option when temperature stability is more important than maximum magnetic strength. Learn where Alnico fits, why low coercivity affects design, and how it compares with high-temperature NdFeB and SmCo.Read More