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Circle City Cryogenics & Circle City Heat Treating

We cryogenically freeze metal & plastic at 300° below zero. Results in dramatically longer wear life. Improves dimensional stability. We are Central Indiana's Premier Specialty Heat Treater since 1952

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Brian Tomlinson
Indianapolis, Indiana


  • Cryogenically treat parts for manufactures.
  • Cryogenically treat parts for race teams.
  • Cryogenically treat parts for farmers.
  • Cryogenically treat parts for machine shops.
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Purdue Manufacturing Extension Partnership, 550 Congressional Blvd., Suite 140, Carmel, IN 46032, (317) 275-6810

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