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:
Jan. 26, 2021
Filed:
Jul. 08, 2016
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
To provide a titanium sheet excellent in formability and a method for manufacturing the same. A titanium sheet, wherein, when a carbon concentration of a base material is C(mass %) and a carbon concentration at a depth d μm from a surface is C(mass %), the depth d (carbon concentrated layer thickness) satisfying C/C>1.5 is 1.0 μm or more and less than 10.0 μm or less, wherein a Vickers hardness HVat a load of 0.245 N in the surface is 200 or more, a Vickers hardness HVat a load of 0.49 N in the surface is lower than HV, and a difference between HVand HVis 30 or more, wherein a Vickers hardness HVat a load of 9.8 N in the surface is 150 or less, and wherein an average interval between cracks generated in the surface when a strain of 25% is given in a rolling direction in a bulging forming process is less than 50 μm and a depth thereof is 1 μm or more and less than 10 μm.