A copper base alloy, which is resistant or immune to carburization, metal dusting and coking, and resistant to oxidation, the alloy having the following composition (all contents in weight %):

    • Al 0-15
    • Si 0-6
    • Mg 0-6
    • one or more of the group of Rare Earth Metal (REM), yttrium, hafnium, zirconium, lanthanum, cerium) up to 0.3 wt. % each;
    • Cu balance; and
    • normally occurring alloying additions and impurities. Related articles of manufacture and methods are also described.
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