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External Corrosion Resistance of
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 14, 2001 by SAE International in United States
Annotation ability available
New technology for the manufacturing of copper/brass heat exchangers has been developed and the first automotive radiators are already in operation in vehicles. This new technology is called CuproBraze®. One of the essential questions raised is the external corrosion resistance with reference to the present soldered copper/brass radiators and to the brazed aluminium radiators.
Based on the results from electrochemical measurements and from four different types of accelerated corrosion tests, the external corrosion resistance of the CuproBraze® radiators is clearly better than that of the soldered copper/brass radiators and competitive with the brazed aluminum radiators, especially as regards marine atmosphere. Due to the relatively high strength of the CuproBraze® heat exchangers, down gauging of fins and tubes in some applications is attractive. High performance coatings can ensure long lifetime from corrosion point of view, even for thin gauge heat exchangers.
|Technical Paper||Interactions Between the Materials in the Tube-Fin-Joints in Brazed Copper-Brass Heat Exchangers|
|Technical Paper||OCP - Materials|
|Technical Paper||CuproBraze Manufacturing - Plant Design - Lock Seam Tubes|
CitationAinali, M., Korpinen, T., and Forsén, O., "External Corrosion Resistance of
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- CuproBraze® is a registered trademark by International Copper Association, ICA, New York, NY, USA.