Typically, die casting machines are not suitable for direct die casting of stainless steel. This is because stainless steel usually has a higher melting point and liquid viscosity, as well as a higher solidification shrinkage. These characteristics make the die-casting process of stainless steel relatively difficult.

Although stainless steel generally has a higher melting point, there are specialized high-pressure casting equipment and processes that can be used to cast stainless steel parts. These equipment and processes are often able to provide sufficient pressure and temperature to melt the stainless steel and inject it into the mold. However, these equipment and processes are costly and require strict process control and equipment maintenance.

Therefore, in general, die casting machines are more suitable for casting low melting point metals, such as aluminum alloys, magnesium alloys, zinc alloys, etc. For high melting point metals such as stainless steel, other processing methods are usually used, such as sand casting, investment casting, etc.