Stainless Steel and CNC Machining

Learn about the five main types of Stainless Steel and how to choose the right grade for your CNC machining project.

11
Jan

Stainless Steel and CNC Machining


Stainless steel is an incredibly versatile metal and is often used for CNC (Computer Numerical Control) Machining and CNC turning in the aerospace, automotive and marine industries. Stainless steel is known for its resistance to corrosion and with various alloys and grades of stainless steel available, there are a wide variety of applications and use cases. This article will explain the different types of stainless steel, their mechanical properties and help you to determine the best grade for your project.

There are five general categories of stainless steel with different alloying elements and material structures:

  • Austenitic Stainless Steel
  • Ferritic Stainless Steel
  • Martensitic Stainless Steel
  • Precipitation Hardened Steel
  • Duplex Stainless Steel (austenitic-ferritic)

Austenitic steel


Austenitic stainless steels are primarily used for products that require strong corrosion resistance. Domestic, industrial and architectural products often use austenitic stainless steel. These could include:

  • Nuts and bolts and other fasteners
  • Food processing equipment