Alloys or metallic compositions – Containing over 50 per cent metal but no base metal – Iron containing
Reexamination Certificate
2005-05-10
2005-05-10
Mai, Ngoclan T. (Department: 1742)
Alloys or metallic compositions
Containing over 50 per cent metal but no base metal
Iron containing
C420S094000, C420S122000, C420S430000, C148S336000, C148S423000, C148S546000, C148S556000, C148S557000
Reexamination Certificate
active
06890480
ABSTRACT:
Medium- and high-density articles are formed from melting and casting alloys containing tungsten, iron, nickel and optionally manganese and/or steel. In some embodiments, the articles have densities in the range of 8-10.5 g/cm3, and in other embodiments, the articles have densities in the range of 10.5-15 g/cm3. In some embodiments, the articles are ferromagnetic, and in others the articles are not ferromagnetic. In some embodiments, tungsten forms the largest weight percent of the alloy, and in other embodiments the alloy contains no more than 50 wt % tungsten. In some embodiments, the articles are shell shot.
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Mai Ngoclan T.
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