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Better Metal, Better Parts

Austempering is a specialized heat treating process that imparts superior properties to ferrous metals.
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Moving Parts, Moving Industry

The Austempering Process is a useful tool to increase the performance of components across many different industries.
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Making Parts Better For 40 Years

Applied Process has been a technology leader in the heat treating industry since 1978 solving tough engineering problems.
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Why Applied Process

Not Just Better Parts, A Better Process

While what we do at Applied Process is specialize in the Austempering process, we don’t just heat treat your parts to make them lighter, stronger and more durable. We help you replace one material/process combination with a better, faster, cheaper one.

Whether we are a reliable step in your manufacturing process or an efficient supplier of outsourced Austempering services, you’ll find us to be a “no problem”, cost-effective collaborator.

  • AP is the world leader in Austempering technology. It’s all we do since 1962.
  • Our iron and steel metallurgical bench strength is unmatched in the industry.
  • Our dedicated R&D center is always working on the next new technology.
  • AP plants are state-of-the-science, clean, safe, efficient and ISO certified.
  • Most of our business is derived from engineering conversions.
  • AP engineers can provide your team with conceptual and design assistance.
  • We can show you how Austempering can be used in lightweighting.
  • We help your business enter new markets and improve your bottom line.

OUR Services

Stronger and tougher

We specialize in the Austempering heat treating process, creating superior properties in ferrous metal parts: less distortion, higher strength, higher toughness, better wear resistance, lighter components and lower overall cost.

“The Lethbridge Iron Works vision statement reads: “Our success is driven by relationships with our employees, our customers, and our suppliers”, and Applied Process is exactly the caliber of supplier that we seek out. Leth Iron customers expect the highest quality castings commercially available, and Applied Process is the only company that we can trust to heat treat iron to those standards. When we’re presented with casting opportunities that require heat treatment but don’t fit within our process, I’m always confident that the Applied Process team will provide exceptional service to our customers. Their process control, communication, and consistency set them apart in the industry, and we have been proud to use Applied Process as our austempering destination for over 25 years.”

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Dylan Bruins

Business Development Lead - Lethbridge Iron Works - Lethbridge, Alberta, Canada

Pier Foundry values the relationship with Applied Process and we work together to achieve solutions for our customers when Austempered Ductile Iron can be of benefit.  AP has three world class Salt Bath Quenching facilities with very technical and professional support staff. AP provides us with competitive pricing and lead times and has very fast turnaround on quotes.  I would highly recommend AP to others who seek service in Austempering and ADI. They are number one when it comes to Austempering and Salt Bath Quench Heat Treatment and the technical support that goes along with it.

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Duane Rice

Sales Specialist - Pier Foundry & Pattern Shop - St. Paul, Minnesota

Applied Process has maintained excellent quality and delivery of the products that they process for us.  They are a valuable resource for information for austemper heat treat and the many advantages that the various grades can offer.  From start to finish they maintain excellent communication and documentation on the parts that they process for us.  We consider Applied Process a valuable partner and would recommend them to anyone that is considering austemper heat treated components.

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David M. Didion

Director of Operations - Precision Components & Assemblies, Inc. - St. Peters, Missouri

Waupaca Foundry has been working almost exclusively with Applied Process Inc. for more than 25 years providing our customers ADI solutions for a diverse group of parts and applications for automotive, commercial vehicle, and off highway markets.   AP provides us an extremely consistent and superior quality product for our ADI applications.  Their entire staff is eager to work collaboratively with our company and our customers to offer the best overall solution.  Applied Process is an integral part of our supply chain and our overall customer value proposition.

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John Wiesbrock

Executive Vice President of Sales, Marketing, and Supply Chain Management - Waupaca Foundry, Inc., A Hitachi Metals Group Company, Waupaca, WI

The high level of customer service at Applied Process is exceptional on its own but it comes with technical support that makes the combination truly outstanding.  The response to State Line’s needs is prompt and the value added in supporting us on technical matters is a tangible benefit.  On several occasions their technical experts have made recommendations that led to quick, cost effective solutions.  I highly recommend Applied Process.

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Steve Holdeman

President - State Line Foundries - Roscoe, IL

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Join the Best in the Heat Treating Business

At Applied Process, the most talented engineers, heat treating specialists, and thought leaders are driving the future of the Austempering Industry. Learn more

Applied Process University

Applied Process University (AP University) is a two-day, non-commercial, invitation-only formal training program that is hosted and executed by the Applied Process family of companies. Learn More