A CO2 laser can engrave stainless steel with a pre-treatment applied, or a fiber laser can also engrave or etch stainless steel. Stainless steel is also suitable for laser annealing. Deep laser engraving is commonly used for marking stainless steel.

For stainless steel, it is recommended to engrave on high power and low speed. It will give you a better contrast. But when you do a power-speed test, you get a complete idea of the power and speed you need to select. Moreover, some laser engravers produce various colors on different power and speed settings.