The Best Gases for CNC Plasma Cutting: Oxygen, Nitrogen, or Air?
Wondering which is the best gas for CNC plasma cutting? Depending on the type of metal that you are cutting, there are different types of gases or a mixture of gases. Some of the most common gases for CNC plasma cutting are oxygen, nitrogen, argon hydrogen and air. This is a quick guide to select the best bases for CNC plasma cutting for optimum performance & results. Best Gases for CNC Plasma Cutting Oxgyen Oxygen is one of the most common CNC plasma cutting gases for mild steel. O2 allows for precise and clean cuts for quick cutting. Oxygen is not suitable for aluminium and stainless plates. It is crucial to note that oxygen is expensive and short life of consumables, also it does not work on shiny surfaces. Ideal for metals : Mild steel Recommended material thickness <32 mm Nitrogen Nitrogen is used for high-current plasma machines and can but metals of thickness up to 3 inches. Nitrogen is the best gas for plasma cutting stainless steel, ...