A copper corrosion test, is a performed in order to determine a lubricant’s capability to protect copper and copper-containing alloys from corrosion or staining. The test results are also indicative of a lubricant’s corrosion protection properties with other non-ferrous metals such as aluminum.
A cleansed copper trip is immersed in the test lubricant in a container, and this shall be exposed to a temperature of 100oC for 24 hours typically. The resulting appearance of the copper strip is visually compared against an ASTM copper strip corrosion standard, and the lubricant shall be graded according to its corrosion protection capability. A rating of 1a and 1b are deemed best, and succeeding numbers 2, 3, 4 denote weaker capabilities.
Such tests are important especially for bearing applications wherein copper or its alloys are used, as well as with metalworking fluids used for non-ferrous metals.
DID YOU KNOW that compared to Mineral Oils and PAO’s, Esters are known to run clean and resist oxidation and carbonization at elevated temperatures?
For more ideas and knowledge about industrial lubricants, you can check out our other blogs! Fluid Solutions is the best industrial lubrication service provider in the Philippines. We offer various industrial lubrication products like Food Grade Oils and Greases, High Performance Greases, Specialty Lubrication, Maintenace Equipment, Metalworking Fluids,a and many more! Contact us at (02) 696-7120 or email us at [email protected] for more information!