Abstract
Creep-resistant parts of heat treatment furnaces are in most cases made
from high-alloyed chromium-nickel and nickel-chromium iron
alloys, both cast and wrought. This paper presents the types of casting alloys
used for this particular purpose, since the majority of furnace components
are made by the casting process. Standards were cited which give symbols
of alloy grades used in technical specifications by the domestic industry.
It has been indicated that castings made currently are based on a wider
spectrum of the creep-resistant alloy grades than the number of alloys
covered by the standards. Alloy grades recommended by the technical
literature for individual parts of the furnace equipment were given. The
recommendations reflect both the type of the technological process used
and the technical tasks performed by individual parts of the furnace
equipment. Comments were also made on the role of individual alloying
elements in shaping the performance properties of castings.
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