MTI Survey Reveals Key Fire Prevention Best Practices and Lessons Learned from Heat Treating Plants

Every fire incident represents more than damaged equipment…it represents an opportunity to learn. Recognizing that one company's experience can help prevent another company's loss, the Metal Treating Institute (MTI) recently conducted an anonymous survey of Member companies to capture the best practices and lessons learned from fire incidents in heat treating facilities.

The goal was straightforward: identify the common causes of fire incidents, understand the corrective actions companies implemented, and share practical recommendations that can help every heat treating operation strengthen its fire prevention efforts.

Common Themes Emerged

Although the survey included a relatively small sample of reported incidents, several consistent patterns emerged. Most incidents occurred in atmosphere furnaces, quench systems, temper furnaces, and other supporting plant equipment. Fortunately, nearly all reported incidents resulted in equipment damage rather than employee injuries…a testament to the industry's commitment to safety.

The survey found that many fires shared similar root causes, including:

• Inadequate preventive maintenance
• Equipment wear and missed inspections
• Poor housekeeping
• Operator error or insufficient training
• Oil or water contamination
• Improper equipment installation
• Electrical or utility failures

Perhaps one of the most important findings was that most companies reported no obvious warning signs before the fire occurred. This reinforces the importance of disciplined preventive maintenance, routine inspections, operator vigilance, and engineered safeguards rather than relying on visible indicators that a problem is developing.

The Cost of Downtime

Even when injuries were avoided, the business impact was significant. Many facilities experienced approximately one week of downtime, while several larger incidents resulted in production interruptions lasting more than a month.

For many heat treaters, the true cost of a fire extends far beyond repairing equipment. Lost production, delayed customer deliveries, overtime expenses, and operational disruption can have lasting effects on customer relationships and profitability.

Fire Prevention Is Built on Daily Discipline

One message echoed throughout nearly every survey response: successful fire prevention rarely depends on a single piece of equipment or technology. Instead, it is built upon consistent execution of basic operational disciplines every day.

Members repeatedly emphasized the importance of:

• Investing in strong preventive maintenance programs
• Maintaining excellent housekeeping throughout the facility
• Conducting routine inspections
• Providing continuous employee training
• Monitoring furnaces closely during startup and quenching operations
• Properly labeling and segregating process materials
• Verifying contractor installations before equipment is placed into service
• Installing redundant monitoring and safety systems where appropriate

Many respondents indicated these improvements have successfully prevented similar incidents from occurring again.

Why Every Heat Treat Plant Should Review These Lessons

One of the greatest values of the survey is not simply identifying best practices, it is creating meaningful conversations within every heat treating operation.

Every heat treat facility should consider gathering supervisors, maintenance personnel, operators, safety professionals, and management to review these findings together. Team discussions around real-world incidents often uncover opportunities that may otherwise go unnoticed.

Questions every team should ask include:

• Could this happen in our facility?
• Are our preventive maintenance programs thorough enough?
• Are housekeeping standards consistently maintained?
• Do our employees know exactly how to respond if a fire begins?
• Are inspections identifying potential hazards before they become incidents?
• Have we reviewed contractor work before equipment is commissioned?

These conversations create awareness, strengthen accountability, and often lead to simple improvements that significantly reduce future risk.

Learning From Fire Incidents Makes Everyone Safer

Perhaps the greatest takeaway from the MTI survey is that the industry becomes stronger when Members openly share their experiences. Every lesson learned by one company becomes knowledge that can help protect another.

Fire prevention is not a one-time initiative, it is a continuous process of learning, improving, training, and reinforcing operational excellence. By regularly reviewing best practices and discussing lessons learned with employees, heat treaters can build a stronger safety culture while protecting their people, equipment, customers, and business.

The time to get serious about fire prevention measures is not after you have a fire incident that cause damage, injury, or downtime.  The time is now.

MTI encourages every Member company to use this survey as a discussion guide during safety meetings, maintenance reviews, and employee training sessions. Sometimes the most valuable safety investment isn't purchasing new equipment, it's taking the time to learn from those who have already experienced the unexpected.

Together, by sharing knowledge and continuously improving our operational practices, the heat treating industry can reduce fire risks and create safer, more resilient facilities for everyone.

To view a copy of the overall report from the survey, CLICK HERE.