Title:
WELDING METAL HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS AND EXCELLENT DROP-WEIGHT CHARACTERISTICS
Document Type and Number:
WIPO Patent Application WO/2011/126121
Kind Code:
A1
Abstract:
Provided is a welding metal wherein: the chemical component composition thereof is appropriately controlled; value (A) that is defined by a preset relational expression satisfies the requirement of being 3.8-9.0% inclusive; value (X) that is defined by a preset relational expression satisfies the requirement of being 0.5% or greater; the area rate of carbides having an equivalent circle diameter of 0.20 μm or greater in the welding metal is 4.0% or less; and the number of carbide particles having an equivalent circle diameter of 1.0 μm or greater is 1,000/mm2 or 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.
Inventors:
NAKO Hidenori (())
名古 秀徳 (())
OKAZAKI Yoshitomi (())
岡崎 喜臣 (())
YAMASHITA Ken (())
名古 秀徳 (())
OKAZAKI Yoshitomi (())
岡崎 喜臣 (())
YAMASHITA Ken (())
Application Number:
JP2011/058939
Publication Date:
October 13, 2011
Filing Date:
April 08, 2011
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO (10-26, Wakinohama-cho 2-chome Chuo-ku, Kobe-sh, Hyogo 85, 〒6518585, JP)
株式会社神戸製鋼所 (〒85 兵庫県神戸市中央区脇浜町二丁目１０番２６号 Hyogo, 〒6518585, JP)
NAKO Hidenori (())
名古 秀徳 (())
OKAZAKI Yoshitomi (())
岡崎 喜臣 (())
株式会社神戸製鋼所 (〒85 兵庫県神戸市中央区脇浜町二丁目１０番２６号 Hyogo, 〒6518585, JP)
NAKO Hidenori (())
名古 秀徳 (())
OKAZAKI Yoshitomi (())
岡崎 喜臣 (())
International Classes:
C22C38/00; B23K35/30
Attorney, Agent or Firm:
OGURI Shohei et al. (Eikoh Patent Firm, Toranomon East Bldg. 10F 7-13, Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
Claims:
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