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Steel Mills

Armco Steel Middletown Works

Armco Steel Middletown Works

Armco Steel Middletown Works Armco Steel's Middletown Works was the company's flagship facility and the economic anchor of Middletown, Ohio. The integrated steel mill used asbestos extensively in its blast furnaces, open hearth furnaces, and rolling mill operations, exposing generations of workers to hazardous fibers.

Last verified: 2026-03-09
Location
Middletown, OH
Industry
Steel Manufacturing
Exposure Era
1940s–1970s
Primary Asbestos Products
Furnace insulation, Pipe insulation, Gaskets, Valve packing, Refractory materials
Job Categories at Risk
Steelworkers, Furnace operators, Maintenance workers, Insulators, Pipe fitters

History & Asbestos Use

Founded in 1900 by George Verity as the American Rolling Mill Company (ARMCO), the Middletown Works grew into a major steel producer specializing in flat-rolled and specialty steels. The plant was the largest employer in Middletown for most of the 20th century. Armco merged with Kawasaki Steel in 1989 to form AK Steel, which was later acquired by Cleveland-Cliffs. Asbestos was used throughout the facility from its earliest days until regulatory changes in the late 1970s.

Exposure Details

Asbestos insulation was used on open hearth furnaces, blast furnaces, soaking pits, and reheat furnaces throughout the Middletown Works. Steam distribution systems running throughout the plant were wrapped in asbestos pipe lagging. Workers performing furnace relining, pipe repair, and general maintenance disturbed asbestos insulation regularly, releasing fibers into the workplace air.

Workers at Risk

The following job categories at Armco Steel Middletown Works had the highest risk of asbestos exposure:

  • Steelworkers
  • Furnace operators
  • Maintenance workers
  • Insulators
  • Pipe fitters

Health Effects

Former Armco Steel workers from the Middletown Works have reported elevated rates of mesothelioma, lung cancer, and asbestosis. Workers who spent their careers in the plant's hot departments accumulated decades of asbestos exposure. Medical screenings of former employees have detected asbestos-related pleural changes in a significant percentage of those examined.

Health information is based on established medical research on asbestos exposure. Asbestos is classified as a known human carcinogen by the National Cancer Institute, the Agency for Toxic Substances and Disease Registry, and the U.S. Environmental Protection Agency. Consult a physician for medical advice specific to your situation.

Compensation May Be Available

Workers exposed to asbestos at Armco Steel Middletown Works may be entitled to compensation through asbestos trust funds, personal injury lawsuits, or veterans benefits. Mesothelioma patients and their families have recovered billions in compensation from companies that manufactured or used asbestos products.

Find Out If You Qualify

Were You Exposed to Asbestos at Armco Steel Middletown Works?

Workers who were employed at Armco Steel Middletown Works between 1940s–1970s may have been exposed to asbestos-containing materials. If you've been diagnosed with mesothelioma, lung cancer, or asbestosis, you may have legal options including trust fund claims and lawsuits.

Treatment Centers in Ohio

If you were exposed to asbestos at Armco Steel Middletown Works and have been diagnosed with mesothelioma, these specialized treatment centers in Ohio may be able to help.

Browse all treatment centers →

Frequently Asked Questions

What is Armco Steel called now?

Armco Steel became AK Steel after a 1989 merger with Kawasaki Steel. AK Steel was then acquired by Cleveland-Cliffs in 2020. The Middletown Works continues to operate under Cleveland-Cliffs, though asbestos has been largely removed from the facility.

Which Armco Steel workers were most at risk for asbestos exposure?

Workers in the blast furnace, open hearth, and maintenance departments faced the highest asbestos exposure. Insulators, pipe fitters, and boilermakers who directly handled asbestos materials had the most intense contact.

Can I still file an asbestos claim if I worked at Armco decades ago?

Yes. Because asbestos-related diseases can take 20 to 50 years to develop, many former workers are only now receiving diagnoses. Statutes of limitations typically begin at the time of diagnosis, not the time of exposure. Consult an asbestos attorney to evaluate your case.

Get a Free Case Evaluation

If you or a loved one worked at Armco Steel Middletown Works and have been diagnosed with mesothelioma, lung cancer, or asbestosis, our attorneys can help you explore your legal options. There is no cost, no pressure, and no obligation.

Free & Confidential No upfront costs, no hidden fees. You pay nothing unless we recover compensation.
Nationwide Representation Licensed to handle mesothelioma cases in all 50 states from our Houston office.
Over 25 Years of Experience Our attorneys have recovered over $2 billion for mesothelioma patients and families.
Fast Results Trust fund claims can resolve in as few as 90 days. We move quickly for our clients.

Or call us 24/7: 1-800-400-1805

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Sources:

  • EPA records — accessed 2026-03-09
  • OSHA compliance records — accessed 2026-03-09
  • Ohio industrial historical records — accessed 2026-03-09
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