Patent ID: 11859262
Assignee: FUSHUN SPECIAL STEEL SHARES CO., LTD.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 4:
5. A high-Nb superalloy ingot prepared by the smelting process according to claim 1, wherein the high-Nb superalloy ingot is an Alloy 706 with a diameter of 800 mm or above, by mass percentage, having a chemical composition of:
C≤0.02%, Cr 15.5-16.5%, Ni 40.0-43.0%, Nb 2.8-3.2%, Ti 1.5-1.8%, Al 0.1-0.3%, Si≤0.10%, Mn≤0.20%, P≤0.015%, S≤0.0013%, Co≤0.30%, Mo≤0.20%, B≤0.006%, Cu≤0.30%, Ca≤0.005%, N≤0.006%, O≤0.005%, and Fe the balance.