The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2025
Filed:
May. 25, 2021
Proterial, Ltd., Tokyo, JP;
Shogo Suzuki, Tokyo, JP;
Masayoshi Date, Tokyo, JP;
PROTERIAL, LTD., Tokyo, JP;
Abstract
Provided are a Ni-based alloy for a hot die having high high-temperature compressive strength, oxidation resistance, and tensile strength and capable of yielding high productivity or long die service life, and a hot forging die using the Ni-based alloy for hot die. A Ni-based alloy for hot die comprising, in mass %, W: 12.0 to 16.0%, Mo: 1.0 to 5.0%, Al: 5.0 to 7.5%, Cr: 0.5 to 5.0%, Ta: 0.5 to 7.0%, Ti: 0.1 to 3.5%, C: 0.01 to 0.25%, N: 0.0005 to 0.01%, B: 0.05% or less, S: 0.015% or less, one or two or more elements selected from rare earth elements, Y, Ca, and Mg: 0 to 0.020% in total, one or two elements selected from Zr and Hf: 1.5% or less in total, Nb: 3.5% or less, Co: 15.0% or less, the balance being Ni and inevitable impurities, wherein C and N satisfy the following relational expression 1:C/100≤N≤C,wherein C and N in the expression mean mass % of each component content.