​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 27th spot we have Sun Steel Treating South Lyon, Michigan.

Since 1958, Sun Steel Treating has specialized in providing our customers exceptional quality, expertise, and timeliness. Whether it’s hardening alloys, carbon steels, tool steels or high speed specialty steels, our engineers know the precise metallurgical processes to apply. Sun Steel Treating continually strives to be the most environmentally responsible heat treating facility. 

In 1981, Sun Steel Treating pioneered the use of plasma Nitriding as a viable surface hardening treatment.  Sun Steel Treating has Trade-marked and registered this process as Ionitriding®.  Sun Steel Treating has also pioneered combining the benefits of Ionitriding® and Steam Treating to develop IonWear®. Sun Steel Treating continues to make improvements in equipment, technology, and processes to meet the diverse application needs of modern manufacturing. Sun Steel Treating continues to lead the field in both capabilities and quality.”

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