发明名称 |
WELDED STRUCTURE MADE OF LOW THERMAL EXPANSION COEFFICIENT ALLOY AND WELD MATERIAL |
摘要 |
<p>In a welded structure and welded pipe, having members joined to each other by welding wherein, at least one of the members is formed of Fe-Ni-base low thermal expansion coefficient alloy, there is provided a welded structure and welded pipe having a weld metal free from cracking and achieving an excellent toughness and stress corrosion cracking resistance. Further, a welding material is provided which can form such a weld metal and is excellent in workability and weldability in fabrication. The weld metal comprises, on the weight % basis, Ni: 30 to 45 %, Co: 0 to 10 %, C: 0.03 to 0.5 %, Mn: 0.7 % or less, either one of or the total of Nb and Zr: 0.05 to 4 %, and rare earth element: 0 to 0.5 %, with impurities being P: 0.02 % or less, Al: 0.01 % or less, and oxygen: 0.01 % or less, wherein each of Si and S satisfies the following formulas 1 &cir& and 2 &cir& , where each element symbol in the following formulas 1 &cir& and 2 &cir& indicates the content (weight %) of each element. <MATH> <MATH></p> |
申请公布号 |
EP1134053(B1) |
申请公布日期 |
2004.09.29 |
申请号 |
EP19990910816 |
申请日期 |
1999.04.01 |
申请人 |
SUMITOMO METAL INDUSTRIES, LTD. |
发明人 |
NISHIMOTO, KAZUTOSHI;KUBO, NAOSHIGE;IWAHASHI, HIROSHI;YAMAMOTO, SHUJI;YAMANAKA, HIDEFUMI;KOGA, SHINJI;CHIDA, YUTAKA;YAMAKAWA, TAKETO;MICHIBA, KOUJI;HIRATA, HIROYUKI;OGAWA, KAZUHIRO;NISHIBATA, TOSHINOBU |
分类号 |
B23K35/30;C22C38/00;C22C38/08;C22C38/10;C22C38/12;C22C38/14;(IPC1-7):B23K35/30 |
主分类号 |
B23K35/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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