Brass alloy
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 20, 1997
Issued Date -
N/A
app pub date -
Mar 13, 1996
filing date -
Jun 2, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A brass alloy having a composition (wt %) as follows: Cu: 57-65%; Bi: 0.3-1.5%; Al: 0.4-0.8%; B: 5-15 ppm; impurities 0-1%, and Zn as remainder. A brass alloy whose Cu content is set to 57-65 wt % and whose further alloying constituents do not exceed 3 wt % can be cast into a chill mold without any problems and, additionally, solidifies from the melt relatively finely grained and thus virtually free of shrinkholes. Further, grain refining with boron is possible in spite of a Cu content that is increased compared to the known alloys, if the elements Mn, Si and Sb are added by alloying in amounts according to the invention and if, simultaneously, the Fe content can be limited to a maximum of 0.25 wt %. Furthermore, the alloy is provided with enhanced hot shortness if the Sn content is as low as possible but, at least, does not exceed 0.25 wt %. The occurrence of hard inclusions is strongly repressed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully