Maximum magnetic force produced by ferrous material

[anorred]

Lets say you have a block of iron with a mass "m" exposed to an infinitely strong magnetic field "B." If there was a strong wooden interface preventing this iron block from moving towards the magnetic field source, how can you calculate the force the iron block would exert on the wooden board?

 

[Simon Bridge]

Lets say you have a block of iron with a mass "m" exposed to an infinitely strong magnetic field "B."

The force would be infinite(?)

Sounds like it is related to your other thread:
https://www.physicsforums.com/showthread.php?t=678095