Since 1999 “The Monty” has been publishing annually a list of the largest commercial heat treaters in North America based upon annual sales, our 2021 list can be found at https://themonty.com/project/50-largest-north-american-commercial-heat-treats-2021-2/ This year readers will see we became much more ambitious and expanded the list to the 50 largest. In our 43rd spot we have Contour Hardening, Indianapolis, Indiana.​

Contour Hardening, Indianapolis, Indiana. Contour was established in 1986 with the goal of providing a cost-effective solution to difficult heat treatment applications-specifically induction hardening systems. However the company is also known as a substantial commercial heat treater. Contour is located in Indianapolis, Indiana with a second location in Sialo, Mexico. While primarily known for their Induction hardening expertise Contour also offers gas nitriding and Nitrocarburizing.

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