Does anyone know any websites that could tell me the relative magnetic permibility of low carbon steel. I've tried searching for around an hour, can't find anything. I'm guessing that someone might have done stuff with magnetism before.
You'd undoubtedly have more success in you search using the correct spelling "permeability." Here are two sites that contain values for different alloys and also explain magnetization, permeability, and how they change with applied field: