Heat resisting nickel-chromium alloy having high resistance to oxidation, carburization and creep at high temperatures
AssigneeAcieries du Manoir Pompey
InventorsJacques Thuillier, Michel Hugo
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Abstract
The heat resisting alloy of the invention has a high resistance to oxidation, carburization and creep at very high temperatures; its composition is as follows (in % by weight): ______________________________________ Ni 24 - 53 Cr 20 - 44 C 0.01 - 0.6 Mn 0.1 - 1.5 Si 1.3 - 3 Nb 0.5 - 3 N 0.05 - 0.2 (W + Mo) 0.2 - 5 Fe 0 - 47 Cu 0 - 5 ______________________________________ The minimum copper content in case the alloy contains tungsten and less than 40% nickel is at least 0.1%; the Ni/Cr ratio is between 1.20 and 1.40.
Claims15
Heat resisting alloy having a high resistance to oxidation, carburization and creep at very high temperatures and consisting essentially of the following elements in the following by-weight proportion ranges:
- ______________________________________ Ni 24 - 53 % Cr 20 - 44 % C 0.01 - 0.6 % Mn 0.1 - 1.5 % Si 1.3 - 3 % Nb 0.5 - 3 % N 0.05 - 0.2 % (W + Mo) 0.2 - 5 % Fe 0 - 47 % Cu 0.1 - 5 % ______________________________________
- the Ni/Cr by-weight ratio being between 1.20 and 1.40.
Heat-resisting alloy having a high resistance to oxidation, carburization and creep at very high temperatures and consisting essentially of the following elements in the following by-weight proportion ranges:
- ______________________________________ Ni 40 - 53 % Cr 28.6 - 44 % C 0.01 - 0.6 % Mn 0.1 - 1.5 % Si 1.3 - 3 % Nb 0.5 - 3 % N 0.05 - 0.2 % (W + Mo) 0.2 - 5 % Fe 0 - 47 % Cu 0 - 5 % ______________________________________
- the Ni/Cr by-weight ratio being between 1.20 and 1.40.
Heat resisting alloy having a high resistance to oxidation, carburization and creep at very high temperatures and consisting essentially of the following elements in the following by-weight proportion ranges:
- ______________________________________ Ni 40 - 53 % Cr 28.6 - 44 % C 0.01 - 0.6 % Mn 0.1 - 1.5 % Si 1.3 - 3 % Nb 0.5 - 3 % N 0.05 - 0.2 % (W + Mo) 0.2 - 5 % Fe 0 - 47 % Cu 0.5 - 5 % ______________________________________
- the Ni/Cr by-weight ratio being between 1.20 and 1.40.
Heat-resistant alloy having a high resistance to oxidation, carburization and creep at very high temperatures and consisting essentially of the following elements in the following by-weight proportion ranges:
- ______________________________________ Ni 40 - 53 % Cr 28.6 - 44 % C 0.4 - 0.6 % Si 1.3 - 3 % Nb 0.5 - 3 % N 0.05 - 0.2 % (W + Mo) 0.2 - 5 % Fe 0 - 47 % Cu 0 - 5 % Mn 0.1 - 1.5 % ______________________________________
- the Ni/Cr by-weight ratio being between 1.20 and 1.40.
Dependencies are inferred from the claim text.