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:
Oct. 11, 2016
Filed:
Jan. 09, 2013
Atsushi Sugihashi, Tokyo, JP;
Koji Hirano, Tokyo, JP;
Yasushi Hasegawa, Tokyo, JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Abstract
This invention relates to a method producing a common rail excellent in fatigue strength from an inexpensive steel which uses as the material of the common rail a steel for high-strength liquid phase diffusion bonding having good toughness and fatigue strength, which steel contains, in mass %, C: 0.01 to 0.3%, Si: 0.01 to 0.5%, Mn: 0.01 to 3.0%, Cr: 1.0 to 12.0% and Mo: 0.1 to 2.0%, further contains, in mass %, V: 0.01 to 1.0%, B: 0.0003 to 0.01%, Ti: 0.01 to 0.05% and N: 0.001 to 0.01%, has P content limited to 0.03% or less, S content to 0.01% or less and O content to 0.01% or less, further has total content of grain boundary segregated embrittling elements As, Sn, Sb, Pb and Zn limited to 0.015% or less, and a balance of unavoidable impurities and Fe.