US PATENT SUBCLASS 420 / 10
.~.~ Six percent or more total group IV, V or VI transition metals containing

Current as of: June, 1999
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420 /   HD   ALLOYS OR METALLIC COMPOSITIONS

8  DF  FERROUS (I.E., IRON BASE) {24}
9  DF  .~ 1.7 percent or more carbon containing {2}
10.~.~ Six percent or more total group IV, V or VI transition metals containing {1}
11  DF  .~.~.~> Eight percent or more chromium containing {1}

DEFINITION

Classification: 420/10

Six percent or more total group IV, V, or VII transition metals containing:

(under subclass 9) Alloys or metallic composition which additionally contains 6 percent or more total content of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, or tungsten, singly or in combination.

(1) Note. Many patents in this and indented subclasses are so called "hard facing" alloys, which contain a high concentration of hard carbide precipitates.