Can stainless steel be CNC machined?

As a common metal, stainless steel has the characteristics of corrosion resistance and polishing, so stainless steel is one of the most popular materials in metal processing and manufacturing. Whether it is household appliances or auto parts, it is used in a wide range of applications. Many stainless steel products are produced by CNC machining, especially for some precision parts. CNC machining is a machining method that uses computer-controlled equipment to achieve high-precision, repeatable manufacturing. Stainless steel can be divided into various types, mainly including austenitic stainless steel, ferritic stainless steel and martensitic stainless steel. All three stainless steels can be CNC machined, all of them can be processed by CNC.

Features and applications

However, due to the different characteristics of these three stainless steels, their characteristics and application ranges are also different.

  • Austenitic stainless steel contains 16%-26% chromium and less than 35% nickel, usually has the highest corrosion resistance, cannot be strengthened by heat treatment, and is non-magnetic. It is mainly used in products requiring strong corrosion resistance, such as household life, industrial and construction products.
  • Standard ferritic stainless steel contains 10.5%-27% chromium. It cannot be strengthened by heat treatment and is only used on occasions with low anti-corrosion requirements, such as construction and automobile decoration.
  • Martensitic stainless steel usually contains 11.5%-18% chromium and less than 1.2% carbon, can be strengthened by heat treatment, has moderate corrosion resistance, and is usually used in knives, surgical tools, wrenches and turbines.


If you are looking for an excellent manufacturer of CNC processing to provide you with precise processing, Lunyee is your good choice. Lunyee company provides complete CNC multi-axis machining services, in addition to stainless steel machining, we can also process wood, leather, plastic and other materials.

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