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:
Mar. 31, 2015
Filed:
Apr. 08, 2011
Hidenori Nako, Kobe, JP;
Yoshitomi Okazaki, Kobe, JP;
Ken Yamashita, Fujisawa, JP;
Minoru Otsu, Fujisawa, JP;
Hideaki Takauchi, Fujisawa, JP;
Hidenori Nako, Kobe, JP;
Yoshitomi Okazaki, Kobe, JP;
Ken Yamashita, Fujisawa, JP;
Minoru Otsu, Fujisawa, JP;
Hideaki Takauchi, Fujisawa, JP;
Kobe Steel. Ltd., Kobe-shi, JP;
Abstract
Provided is a welding metal in which the chemical component composition thereof is appropriately controlled; an A value that is specified by a predetermined relational expression satisfies the requirement of being 3.8% to 9.0%; an X value that is specified by a predetermined relational expression satisfies the requirement of being 0.5% or greater; the area percentage of carbide particles having a circle-equivalent diameter of 0.20 μm or greater in the welding metal is 4.0% or less; and the number of carbide particles having a circle-equivalent diameter of 1.0 μm or greater is 1000 particles/mmor less. This welding metal, which can exhibit not only high strength but also good low-temperature toughness and good drop-weight characteristics, is useful as a material for a pressure vessel in a nuclear power plant.