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. 28, 1999
Filed:
Jun. 06, 1996
Daido Tokushuko Kabushiki Kaisha, Nagoya, JP;
Abstract
A joined tubular body comprises a titanium alloy pipe of which crystal grain is hard to coarsen at the time of welding or hot-extruding, which consists by weight percentage of at least one element selected from 0.01.about.10% of S, 0.01.about.10% of Se and 0.01.about.10% of Te (the total sum does not exceed 10%), one or both of 0.01.about.10% REM and 0.01.about.10% of Ca (the total sum does not exceed 10%), and the above pipe is joined to a titanium alloy pipe consisting of the above elements and also at least one element selected from Al.ltoreq.10%, V.ltoreq.25%, Sn.ltoreq.15%, Co.ltoreq.10%, Cu.ltoreq.10%, Ta.ltoreq.15%, Mn.ltoreq.10%, Hf.ltoreq.10%, W.ltoreq.10%, Si.ltoreq.0.5%, Nb.ltoreq.20%, Zr.ltoreq.10%, Mo.ltoreq.15%, and 0.ltoreq.0.1% (the total sum does not exceed 30%).