Each of these iso-corrosion diagrams was constructed using numerous corrosion rate values, generated at different acid concentrations and temperatures. The blue line represents those combinations of acid concentration and temperature at which a corrosion rate of 0.1 mm/y (4 mils per year) is expected, based on laboratory tests. Below the line, rates under 0.1 mm/y are expected. Similarly, the red line indicates the combinations of acid concentration and temperature at which a corrosion rate of 0.5 mm/y (20 mils per year) is expected. Above the red line, rates of over 0.5 mm/y are expected. Between the blue and red lines, corrosion rates are expected to fall between 0.1 and 0.5 mm/y.

Haynes International, Inc. 800-354-0806 765-456-6012

HASTELLOY® G-35® alloy Information*

A nickel alloy with outstanding corrosion resistance to "wet process" phosphoric acid, other oxidizing acids, alkalis, and chloride-bearing media.

HASTELLOY^® G-35^® alloy Information*

A nickel alloy with outstanding corrosion resistance to "wet process" phosphoric acid,
other oxidizing acids, alkalis, and chloride-bearing media.