I have prepared an alloy Ni-Sn, I know the crystallization temperature of nickel is from 350oC but I want to know the crystallization temperature of tin, so that I can do annealing.
Supposing you are hinting at the recrystalllzation temperature, I refer to the well known rules of thumb for estimating its values in the present case. I agree with the remarks of Steve Roberts. Supposing too that you are performing a recrystallization treatment in order to control grain size, you have to balance the gain in grain size control versus the efffects of Ni3Sn-precipitation. An effect of the presence of Ni3Sn might be the hindering of grain growth resulting from a locking of the grain boundaries, although Ni3Sn-particles can also enhance nucleation of new grains during recrystallization. So further study is needed.
The question was raised quite specifically: What is the crystallization temperature of tin?
Another thing is that it is put incorrectly. It isn't tin, and in receiving quite concrete alloy. Then, of course, Steve Roberts and P. Van Mourik are right in the answers.