B-H curve for Soft Iron

Hello there !

I am about to use (soft iron) as a core for a saturable device . I need to specify the H( knee) & B(sat) points, but the listed values of B & H in the BH curve seem to away different from what I've found in this link:

www.fieldp.com/magneticproperties.html

Could you help me in figuring out what is the problem !