Title:
BUTT-WELDED JOINT FORMED USING HIGH-ENERGY-DENSITY BEAM
Document Type and Number:
WIPO Patent Application WO/2011/068216
Kind Code:
A1
Abstract:
Disclosed is a welded joint which comprises a pair of steel materials and a weld metal formed at the butt-welded part between the pair of steel materials by welding with a beam having a high energy density, wherein the weld metal has a transformation initiation temperature Ms calculated using the following equation (a), which includes component contents in mass%, of 250ºC or lower.
Ms(ºC)=371-353C-22Si-24.3Mn-7.7Cu-17.3Ni-17.7Cr-25.8Mo (a)
Inventors:
ISHIKAWA Tadashi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
石川 忠 (〒71 東京都千代田区丸の内二丁目６番１号 新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
HONMA Ryuichi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
石川 忠 (〒71 東京都千代田区丸の内二丁目６番１号 新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
HONMA Ryuichi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
Application Number:
JP2010/071721
Publication Date:
June 09, 2011
Filing Date:
December 03, 2010
Export Citation:
Assignee:
NIPPON STEEL CORPORATION (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
新日本製鐵株式会社 (〒71 東京都千代田区丸の内二丁目６番１号 Tokyo, 〒1008071, JP)
ISHIKAWA Tadashi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
石川 忠 (〒71 東京都千代田区丸の内二丁目６番１号 新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
新日本製鐵株式会社 (〒71 東京都千代田区丸の内二丁目６番１号 Tokyo, 〒1008071, JP)
ISHIKAWA Tadashi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
石川 忠 (〒71 東京都千代田区丸の内二丁目６番１号 新日本製鐵株式会社内 Tokyo, 〒1008071, JP)
International Classes:
B23K15/00; B23K15/06; B23K26/20; B23K35/30; B23K31/00; C22C38/00; C22C38/06; C22C38/58
Attorney, Agent or Firm:
SHIGA Masatake et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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