What are the two types of flames commonly used in torch operations?

Acetylene and propane are the two types of flames commonly used in torch operations due to their properties that make them ideal for cutting, welding, and heating.

Acetylene is often favored because it burns at a very high temperature, which is critical for tasks requiring intense heat, such as welding metals. It is also widely used in oxy-acetylene torches because it can achieve a flame temperature of around 3,500 degrees Celsius when burned with oxygen. This makes it particularly effective for high-precision cuts and welds.

Propane, while not as hot as acetylene, is valued for its versatility and lower cost. It burns with a clear blue flame and is suitable for a variety of tasks, especially those that don’t require the extreme temperatures that acetylene provides. Propane is also commonly used for heating and soldering tasks where a controlled flame is necessary.

Both gases can be used in combination with oxygen to create a flame that can be finely adjusted for different applications, making them essential for torch operations. Their availability and effectiveness solidify their status as the primary choices in most operational settings where portable flame applications are needed.