What class of extinguishers is specifically used for metal fires?

Extinguishers classified as Class D are specifically designed to combat fires involving combustible metals, such as magnesium, titanium, sodium, and potassium. These types of fires require specialized extinguishing agents since standard methods can be ineffective or even dangerous. For example, using water on a metal fire can lead to a violent reaction, potentially exacerbating the situation.

Class D extinguishers typically contain dry powder agents that can safely extinguish metal fires by smothering the flames and preventing the reaction that fuels the blaze. Understanding the classification of fire extinguishers and their appropriate applications is crucial for fire safety and effective response in emergencies involving unique combustion scenarios, such as those involving metal materials.