This paper summarizes the experience with use of 3%Cr tubing material in production wells on a major field in the North Sea. Historically13%Cr-80 production tubing was used on this field but the corrosiveness of the production fluids indicated that a lower alloyed material could be sufficient. This paper summarizes the qualification testing/work performed to allow for use of 3%Cr-80 and the experience after more than 10 years in service.KEY WORDS: Corrosion 3%Cr CO2 corrosion