Age-hardening copper alloy as material for producing casting molds
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United States of America Patent
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-
Mar 31, 2009
Grant Date -
May 22, 2003
app pub date -
Nov 13, 2002
filing date -
Nov 21, 2001
priority date (Note) -
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Abstract
An age-hardening copper alloy made of—as expressed in each case in weight %—0.4% to a maximum of 2% cobalt which is partially replaceable by nickel, 0.1% through 0.5% beryllium, optionally 0.03% through 0.5% zirconium, 0.005% through 0.1% magnesium and possibly a maximum of 0.15% of at least one element from the group including niobium, manganese, tantalum, vanadium, titanium, chromium, cerium and hafnium. The remainder is copper inclusive of production-conditioned impurities and usual processing additives. This copper alloy is used as the material for producing casting molds, in particular for the sleeves of continuous casting rolls as components of a two-roll casting installation.
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