发明名称 |
Ferritic stainless steel sheet having excellent deep-drawability and brittle resistance to secondary processing and method for making the same |
摘要 |
<p>A ferritic stainless steel sheet contains abut 0.01 percent by mass or less of carbon; about 1.0 percent by mass or less of silicon; about 1.5 percent by mass or less of manganese; about 11 to about 23 percent by mass of chromium; about 0.06 percent by mass or less of phosphorous; about 0.03 percent by mass or less of sulfur; about 1.0 percent by mass or less of aluminum; about 0.04 percent by mass or less of nitrogen; about 0.0005 to about 0.01 percent by mass of boron; about 0.3 percent by mass or less of vanadium; about 0.8 percent by mass or less of niobium and/or about 1.0 percent by mass or less of titanium wherein 18 ≤ Nb/(C + N) + 2(Ti/(C + N)) ≤ 60; and the balance being iron and unavoidable impurities. The average crystal grain diameter is about 40 mu m or less and the average surface roughness Ra is about 0.3 mu m or less. <IMAGE></p> |
申请公布号 |
EP1308532(A2) |
申请公布日期 |
2003.05.07 |
申请号 |
EP20020024457 |
申请日期 |
2002.10.29 |
申请人 |
JFE STEEL CORPORATION |
发明人 |
YAZAWA, YOSHIHIRO;FURUKIMI, OSAMU;KATO, YASUSHI;OZAKI, YOSHIHIRO |
分类号 |
C22C38/24;C22C38/18;C21D8/04;C22C38/00;C22C38/26;C22C38/28;C22C38/32;(IPC1-7):C22C38/32 |
主分类号 |
C22C38/24 |
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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