Materion’s MoldMAX XL alloy is a high-strength copper alloy with good thermal conductivity. The alloy contains no beryllium and is available in sections up to 305mm thick. The alloy’s hardness is comparable to that of AISI P-20 tool steel, but its thermal conductivity is two to three times higher. MoldMAX XL has better machinability than conventional tool steels and is therefore much easier to machine with suitable machine tools.