Certain metals, such as stainless steel and aluminum, feature naturally-occurring oxide layers that provide some protection against corrosion; certain grades of these materials exhibit greater natural corrosion resistance than others. Through passivation or Anodizing, stainless steel and aluminum parts can be given a thicker, more uniform metal oxide "shell" that improves their corrosion resistance. Passivation also removes free iron molecules that may be embedded in stainless steel surfaces that can lead to rusting or "rouging."

Passivation is commonly used on stainless steels, and Anodizing (or Chromate conversion) is used on specific aluminum alloys that tend not to form a consistent oxide layer due to their metallurgical makeup.

Stainless Steel & Aluminum Passivation Services

Petersen Precision can provide passivation or Anodizing services for stainless steel and aluminum parts that will be used in highly corrosive environments. We do some citrus based passivation in-house, but work with a primary local vendor for the majority of our passivation processes. We can also use your directed third party passivation or Anodizing vendor as needed.

Based on the grade of stainless steel or the aluminum alloy from which your parts are fabricated, as well as the final application in which the parts will be used, our vendors will alter the passivation or Anodizing processes to impart the required level of corrosion protection.

Contact Us for Passivation & More

With complete fabrication capabilities, passivation services, and more, Petersen Precision is your #1 source for precision flat metal parts. We are the proven experts! Request a quote today or contact us to discuss your unique project.