发明名称 |
WELDED PIPE OF + TITANIUM ALLOY WITH EXCELLENT STRENGTH AND RIGIDITY IN PIPE-LENGTH DIRECTION, AND PROCESS FOR PRODUCING SAME |
摘要 |
Provided is an ±+² titanium alloy welded pipe excellent in the strength and the rigidity in the pipe longitudinal direction, the ±+² titanium alloy welded pipe having a composition consisting of, in mass%, Fe: 0.8% to 1.5%, N: 0.02% or less, and the balance: Ti and impurities, and satisfying Q shown in Formula (1) being 0.34 to 0.55. A tensile strength in a pipe longitudinal direction is more than 900 MPa and a Young's modulus in the pipe longitudinal direction is more than 130 GPa. Q = O + 2.77 × N + 0.1 × Fe where [Fe], [O], and [N] represent the amounts of the respective elements contained [mass%]. |
申请公布号 |
EP3112483(A1) |
申请公布日期 |
2017.01.04 |
申请号 |
EP20150777533 |
申请日期 |
2015.04.09 |
申请人 |
Nippon Steel & Sumitomo Metal Corporation |
发明人 |
KAWAKAMI, Akira;TAKAHASHI, Kazuhiro;FUJII, Hideki |
分类号 |
C22C14/00;B21C37/08;C22F1/00;C22F1/18 |
主分类号 |
C22C14/00 |
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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