Age-hardening copper alloy as material for producing casting molds

Abstract From the Canadian patent

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% to 0.5% beryllium optionally 0.03% to 0.5% zirconium, 0.005% to 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.