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09167 Corrosion Resistance of Zr702C in Sulfuric Acid Environments

Product Number: 51300-09167-SG
ISBN: 09167 2009 CP
Author: Derrill Holmes
Publication Date: 2009
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Zirconium is well known and widely used in sulfuric acid containing processes where it is used in heat exchangers, tanks, piping and other ancillary equipment. A considerable body of corrosion data has been developed describing the use of zirconium for use in sulfuric acid environments. Virtually all of this information, however, has been developed using zirconium in wrought form such as sheet and plate. Very little information is available as to the corrosion characteristics of cast zirconium when used in applications involving sulfuric acid in high concentrations and under high temperatures. In addition to wrought products, zirconium pumps and valves are commonly specified in a cast product form of zirconium. This paper will provide information related to the production using the rammed graphite method along. New corrosion data will be given for Zr 702C. A new iso-corrosion diagram is presented comparing wrought Zr 702 vs. cast Zr 702 in sulfuric acid.

KEYWORDS: Zirconium, Zr 702C, Zircadyne® 702, sulfuric acid, metallurgical, mechanical, safety, rammed graphite
Zirconium is well known and widely used in sulfuric acid containing processes where it is used in heat exchangers, tanks, piping and other ancillary equipment. A considerable body of corrosion data has been developed describing the use of zirconium for use in sulfuric acid environments. Virtually all of this information, however, has been developed using zirconium in wrought form such as sheet and plate. Very little information is available as to the corrosion characteristics of cast zirconium when used in applications involving sulfuric acid in high concentrations and under high temperatures. In addition to wrought products, zirconium pumps and valves are commonly specified in a cast product form of zirconium. This paper will provide information related to the production using the rammed graphite method along. New corrosion data will be given for Zr 702C. A new iso-corrosion diagram is presented comparing wrought Zr 702 vs. cast Zr 702 in sulfuric acid.

KEYWORDS: Zirconium, Zr 702C, Zircadyne® 702, sulfuric acid, metallurgical, mechanical, safety, rammed graphite
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