Class D fires are characterized by which type of materials?

Class D fires are specifically associated with combustible metals, such as sodium, magnesium, potassium, and titanium. These materials react chemically with water and can ignite easily when exposed to heat or flames, often resulting in a fire that behaves very differently from other classes of fires. Firefighters must use special extinguishing agents designed for Class D fires, as conventional methods, including water, can exacerbate the situation and lead to more dangerous reactions.

Understanding the nature of these metals and their behavior in a fire scenario is crucial for effective firefighting. Firefighters must be trained to recognize the materials involved in Class D fires to respond safely and appropriately. This unique classification underscores the importance of knowing the properties of different materials when determining the correct fire suppression methods.