Which gases are most commonly used in oxyfuel cutting?

Oxygen and acetylene are the most commonly used gases in oxyfuel cutting due to their combustion characteristics that enable effective heating and cutting of metals. When these gases are mixed and ignited, they produce a flame at extremely high temperatures, typically around 3,500 degrees Celsius (6,332 degrees Fahrenheit). This intense heat is essential for melting the metal at the cutting point, allowing for a clean and efficient cut.

Acetylene is particularly favored because it generates the hottest flame of all fuel gases used in oxyfuel processes, which makes it effective for cutting thicker materials. The combination of oxygen, which supports combustion, and acetylene enables a controlled reaction that provides precision in cutting operations. Due to these properties, this combination is widely adopted in industrial applications for cutting steel and other metals.

Other gases mentioned, like propane, hydrogen, butane, and nitrogen, do not match the efficiency, temperature, or overall cutting capability provided by the oxy-acetylene setup. While they may have specific applications in welding or heating, they are not typically employed for cutting in the way oxyacetylene is.