I am looking for experimental data on the experimental strength of magnetic fields inside ferromagnetic materials. Here is what I mean.
If all of the magnetic moments of the molecules are aligned in the same direction in the material will act as a bar magnet with field straight \$H_0\$.
Theoretically one could just compute this field by adding up all of the of magnetic fields of the individual molecules.
Various real-world considerations makes me feel as this isn't likely to be too accurate of a measurement. Is there a resource with experimental results for the strength of \$H_0\$ for various ferromagnetic materials?
Edit: To add to Phil's post below this can be computed from knowing the experimental saturation permeability \$\mu_{sat}\$ and the field strength at which it occurred \$H_{sat}\$.