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The term “hard metal” should not be confused with the heavy metals lead, cadmium, and mercury. Hard metal can be produced by compacting powdered tungsten carbide (WC) and cobalt (Co) into a very hard composite to make machine components used for drilling, cutting, machining, and grinding.

Such materials have been used for decades to produce machine parts and to coat other materials, however, it is now known that toxic exposure to hard metal powders like cobalt, cobalt-tungsten alloys, tungsten carbide alloys, titanium, nickel, niobium, and chromium can lead to severe occupational lung disease including the following:

Joe Lyon is an Ohio toxic tort attorney and workplace injury lawyer investigating occupational safety hazards for plaintiffs and victims of pneumoconiosis.

Hard Metal Lung Disease & Cobalt Exposure

Hard metals are exclusively used for machining materials that require extreme hardness and high-temperature resistance. Metal cutting tools, oil well drilling tools, and jet engine exhaust ports are examples of products used with hard metals.

Occupations at high risk of toxic exposure from hard metals inhalation include manufacturers and sharpeners of machine tools, electroplaters, machine operators (grinders and lathes), and diamond polishers. Cobalt and tungsten dust is thought to cause severe lung illness and respiratory conditions. If employers fail to protect workers and provide proper safety equipment, they may be liable for managing an unsafe work environment.

Hard-metal disease can range from acute bronchitis to interstitial fibrosis. Tungsten and cobalt particles are suspected of causing serious lung disease. Heavy metal lung disease and Cobalt lung may occur after a short duration of exposure, and each case may be different.

Many case studies have involved positions in metal coating plants, electroplating, and pre-manufactured metal part factories. Metallurgic technicians and machine operators working with aerosolized metal powder, tungsten carbide, cobalt, copper, nickel, and other metals are at risk of developing cobalt lung and pneumoconiosis.

Patients with lung disease often present with abnormal interstitial lung markings on X-rays, trace metals in urine, poor pulmonary function, and diminished total lung capacity. Some workers seek medical attention for a shortness of breath and doctors locate interstitial fibrosis and in some cases, tumors.

A diagnosis of hard-metal pulmonary disease is heavily related to occupational exposure to cobalt and tungsten carbide. The Occupational Safety and Health Administration (OSHA) has noted permissible exposure limits for cobalt, though even small amounts of exposure can be harmful.

Cobalt Exposure Injury & Pneumoconiosis

Cobalt is used in cutting and grinding tools, pigments and paints, colored glass, surgical implants, batteries, and electroplating processes. One study or a worker population of 290 subjects suggested that interstitial and obstructive lung disease occur in tungsten carbide workers in association with elevated concentrations of cobalt.

Workers are at risk in industries processing cobalt-alloys, electroplating, mining materials, operating machines with cutting or grinding tools, and workers at nuclear or irradiation facilities.


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Joseph Lyon has 17 years of experience representing individuals in complex litigation matters. He has represented individuals in every state against many of the largest companies in the world.

The Firm focuses on single-event civil cases and class actions involving corporate neglect & fraud, toxic exposure, product defects & recalls, medical malpractice, and invasion of privacy.


The Firm offers contingency fees, advancing all costs of the litigation, and accepting the full financial risk, allowing our clients full access to the legal system while reducing the financial stress while they focus on their healthcare and financial needs.

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Why are these cases important?

Rightful compensation for plaintiffs can recover sizable settlements and can help pay for mounting medical expenses and other damages that may include long-term disability, rehabilitation, pain and suffering and lost wages. During some of the toughest times in a family’s life, The Lyon Firm can be of assistance.


Questions about Catastrophic Injury Cases

What is a Catastrophic Injury Lawsuit?

A lawsuit with severe and debilitating damages. In these cases, liability must be proven first. In many cases, the root cause of the injury is unknown and requires expert investigation.

Why should I hire The Lyon Firm?

Our Firm will help you find the answers.  The Firm has the experience, resources and dedication to take on difficult and emotional cases and help our clients obtain the justice for the wrong they have suffered. 

 Experience:  Joe Lyon is an experienced Cincinnati Catastrophic Injury Lawyer. The Lyon Firm has 17 years of experience and success representing individuals and plaintiffs in all fifty states, and in a variety of complex civil litigation matters. Catastrophic Injury lawsuits can be complex and require industry experts to determine the root cause of an accident or injury. Mr. Lyon has worked with experts nationwide to assist individuals understand why an injury occurred and what can be done to improve their lives in the future. Some cases may go to a jury trial, though many others can be settled out of court.

Resources/Dedication: Mr. Lyon has worked with experts in the fields of accident reconstruction, biomechanics, epidemiology, metallurgy, pharmacology, toxicology, human factors, workplace safety, life care planning, economics, and virtually every medical discipline in successfully representing Plaintiffs across numerous areas of law. The Lyon Firm is dedicated to building the strongest cases possible for clients and their critical interests.

Results:  Mr. Lyon has obtained numerous seven and six figure results in personal injury,  automotive product liability, medical Negligence, construction accidents, and auto dealership negligence cases.  The cases have involved successfully litigating against some of  the largest companies in the world 

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Many of my clients come to me in the hardest moments of their lives. They’ve suffered catastrophic injury, they’ve lost a family member, their business has suffered a catastrophic loss that they may not be able to overcome.

It’s a fear of the future and uncertainty that has driven them to come to a lawyer and to ask, ‘What available legal rights are there?’ in order to add some security for their future. The Lyon Firm takes the lead and guides clients through the process of filing catastrophic injury lawsuits.

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