Kovatch Castings, Inc.

At Kovatch Castings, we craft precision cast components that contain complex geometries, thin walls, close tolerances, and fine surface finish requirements in high strength, corrosion-resistant alloys. Learn more about our history, our certifications, and our work in the community.

Ready to take the next steps? We’ve been building customer trust for more than 40 years. Contact Kovatch Castings to get started on your next project.

Ready to take the next steps? We’ve been building customer trust for more than 40 years. Contact Kovatch Castings to get started on your next project.

Sometimes called “mag particle,” magnetic particle testing is a process that reveals cracks and similar defects on, or just below, the surface of the casting to about 1/16″ deep. In short, the metal piece, generally steel, is placed in a magnetic field, polarizing each end of the part, creating a north-south pole magnet. If there is a crack in the surface, additional north-south poles are created at the actual crack. This area is known as “magnetic flux leakage” due to the break in the overall magnetization of the part. When a wet suspension of magnetic particles is applied to the part, they are attracted to the cracks and are visibly apparent.