Hello Sean Langdale,
we can do these simulation in ANSYS MAXWELL by using magnetostatic solver. we can place a pointer to find out the fields. we can change the parameters by using parametrics in the tool but to change the steel grade we need to change the material properties those also can be parameterized. To know more about the MAXWELL, we have learning hub you can visit and take getting startesd with Maxwell course, the link given below.
Electronics | Maxwell Getting Started - Ansys Maxwell Getting Started (sapjam.com)
Thank you.
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