发明名称 |
Weld joint formed with stainless steel-based weld metal for welding a zinc-based alloy coated steel sheet |
摘要 |
Disclosed are a weld joint and a stainless steel-based weld metal composition for the weld joint. The composition and weld joint made therefrom are suitable for welding a zinc-based alloy coated steel sheet. The weld is excellent in corrosion resistance and liquid-metal embrittlement crack resistance. This is accomplished by inhibiting liquid-metal embrittlement cracks of the stainless-steel-based weld metal when the zinc-based alloy coating steel sheet is welded using the stainless-steel-based weld metal. The weld joint comprises a welded portion of weld metal made of stainless-steel-based components, the weld metal containing in mass percent (%): C: 0.01-0.1; Si: 0.1-1; Mn: 0.5-2.5; Ni: 5-11; and Cr: 17-25, and the balance being iron and residual impurities, wherein the following expression are met: −0.81×Cr equivalent+23.2≦̸Ni equivalent≦̸0.95×Cr equivalent−8.1 . . . (1); Ni equivalent=Ni+30×C+0.5×Mn+30×N . . . (2); Cr equivalent=Cr+Mo+1.5×Si . . . (3).
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申请公布号 |
US7767314(B2) |
申请公布日期 |
2010.08.03 |
申请号 |
US20060992200 |
申请日期 |
2006.09.25 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
KODAMA SHINJI;HAMATANI HIDEKI;MIZUHASHI NOBUO;ASAI KENICHI;MIZUMOTO MANABU |
分类号 |
B32B15/00;B32B15/01;B32B15/02;B32B15/18 |
主分类号 |
B32B15/00 |
代理机构 |
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地址 |
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