High-temperature alloy
View Patent ↗An iron-based high-temperature alloy is disclosed which contains the following chemical composition: 20% by weight Cr; 5 to 6% by weight Al; 4% by weight Ta; 4% by weight Mo; 3 to 4% by weight Re; 0.2% by weight Zr; 0.05% by weight B; 0.1% by weight Y; 0.1% by weight Hf; 0 to 0.05% by weight C; and remainder Fe and unavoidable impurities. The alloy can be produced at low cost and can possess outstanding oxidation resistance and good mechanical properties at temperatures up to 1200° C.
1. An iron-based high-temperature alloy chemical composition, consisting of:
20% by weight Cr;
5 to 6% by weight Al;
4% by weight Ta;
4% by weight Mo;
3 to 4% by weight Re;
0.2% by weight Zr;
0.05% by weight B;
0.1% by weight Y;
0.1% by weight Hf;
0 to 0.05% by weight C; and
remainder Fe and impurities.
2. The high-temperature alloy as claimed in claim 1 , wherein the Al content is 5.5% by weight.
3. The high-temperature alloy as claimed in claim 2 , wherein the C content is 0.05% by weight.
4. The high-temperature alloy as claimed in claim 3 , wherein the Re content is 3% by weight.
5. The high-temperature alloy as claimed in claim 2 , wherein the Re content is 4% by weight.