Sandvik Intellectual Property Ab

Johan Hernblom

Mats Lundberg

Peter Szakalos

Kenneth Göransson

Peter Szåkalos

Peter Nordin

Anders WallerÖ

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 %):

Copper base alloy

A product resistant or immune to carburization, metal dusting, coking, oxidation, and having sufficient mechanical strength for use at temperatures greater than 400&#xb0; C. The product consists of a load-bearing member and a corrosion resistant member, wherein the corrosion resistant member is a Cu&#x2014;Al-alloy comprising Si. The product can be used in CO-containing atmospheres, and/or hydrocarbon containing atmospheres or solid carbon containing processes. A method of resisting carburization, metal dusting, coking and oxidation is also disclosed.

Metal dusting resistant product

A copper-base alloy with increased melting point above 1000&#xb0; C., which is resistant or immune to carburization, metal dusting and coking, resistant to oxidation at elevated temperatures. The alloy has the following composition (in weight-%): Al 4&#x2013;15, Si 0.1&#x2013;6, Mo 0.5&#x2013;40, W 0&#x2013;40, where the total of Mo and W do not exceed 40%, one or more of the group of Rare Earth Metals (REM), such as yttrium, hafnium, zirconium, lanthanum and/or cerium, up to 1.0 weight-% of each element or a total of maximum 3.0 weight-%, Cu balance and normally occurring alloying additions and impurities. A method for the alloy's production, and the alloy's use as construction components in CO-containing atmospheres, ammonia containing atmospheres, and/or hydrocarbon containing atmospheres or solid carbon containing processes, are also disclosed.

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Sandviken, Sweden

Johan Hernblom