Normally steels that contain 8% nickel or more. However there are applications for cast materials.
Boronizing can be done on almost any steel or cast iron. It’s used in tines to perform aeration on golf courses, agricultural rock guards, valves for oil and gas exploration, and pump parts.
Depending on the material, between 25- 50 microns.
Yes. Most are done between 750 C and 1100 C. Heat treating may be required after the process.