Nickel alloy, tantalum, titanium and zirconium resist salts, acids or other corrosive media, making them suitable metals for the fabrication of heat exchangers used in harsh chemical environments.

AstroCosmos Metallurgical, Oxnard, Calif., a fabricator of corrosion-resistant equipment, summarized data relating corrosion resistance in applications with certain media into easy-to-read charts. Users should keep in mind that the charts serve only as a general guideline, not a guarantee, and final selection must be based on actual evaluation of the metal in the corrosive medium.

Download versions of these charts using the links at the bottom of the page or visit for complete information.