Dental casting alloy

Details Dental casting alloy Dental casting alloy

2006-05-09

2006-05-09

Sheehan, John P. (Department: 1742)

Alloys or metallic compositions

Cobalt base

Chromium containing

C148S425000, C433S207000

Reexamination Certificate

active

07041251

ABSTRACT:
To improve the fracture resistance of a dental casting alloy without giving rise to undue hardness thereof it is proposed that the dental casting alloy substantially consists of28–34wt %Cr,5–9wt %Mo,1–3wt %W,0.9–1.3wt %Si,0.15–0.3 wt %Mn,0.1–0.3wt %N,0.1–0.3wt %C,<0.1wt %Ni,manufacturing impurities,remainder cobalt,the ratio of the content of Mo to that of W being in the range of from about 3:1 to about 5:1 and the ratio of the content of Si to that of Mn being in the range of from about 3:1 to about 9:1.

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