Tungsten, Tantalum and Titanium Carbide Alloys—Kennametal

TABLE 5.34 TUNGSTEN, TANTALUM AND TITANIUM CARBIDE ALLOYS-KENNAMETAL 

K801 has proved to be a better choice than other carbides for seal rings and other parts subjected to moderately corrosive conditions. It provides distinct advantages where electrolytic attack of the binder or etching may occur, such as when immersed in mineralized or boiler feed water. 

In sodium hydroxide and hot sulfuric acid tests, K801 has shown better corrosion resistance than K701. K801 can also be used to advantage in radioactive atmospheres because the nickel binder has a much shorter half-life than the cobalt used as a binding element in most other carbides. 

Use of carbides for their corrosion resistance alone is seldom justified since other materials having this property are more workable and less costly. However, when abrasion is involved, the combined corrosion-wear resistance of Kennametal or Kentanium will give far better results. 

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