Alnico is an aluminum-nickel-cobalt alloy that uses less cobalt than Samarium Cobalt, making it more affordable. It is the material of choice for high heat applications thanks to its high operating temperature and corrosion-resistance properties.
The downside is that Alnico is not such a strong magnetic material, so the required magnet size for suitable performance will be larger. This often eliminates alnico as a material for applications such as consumer electronics that require a very small magnet size.
The stated forces have been determined at room temperature on a plate in polished steel (S235JR according to DIN 10 025) with a thickness of 10 mm (1kg ~ 10N). A maximum deviation of -10% compared to the specified value is possible in exceptional cases. Value is exceeded in general. Depending on the type of application (installation situation, temperatures, counter anchor etc.) the forces can be influenced enormously. The indicated values are serving as an orientation.