发明名称 |
REFRACTORY STEEL MATERIAL WITH WELDED JOINT EXCELLENT IN UNSUSCEPTIBILITY TO REHEAT EMBRITTLEMENT AND TOUGHNESS AND PROCESS FOR PRODUCING THE SAME |
摘要 |
<p>A refractory steel material is provided which has excellent high-temperature strength and includes a welded joint excellent in unsusceptibility to reheat embrittlement and toughness. The material is produced from a steel which has a room-temperature strength in the 400-600 N/mm2 class and contains, as main components: 0.010-0.05%, excluding 0.05%, carbon; 0.01-0.50% silica; 0.80-2.00% manganese; 0.50-2.00%, excluding 2.00%, chromium; 0.03-0.30% vanadium; 0.01-0.10% niobium; 0.001-0.010% nitrogen; and 0.005-0.10% aluminum. The steel has limited contents of nickel, copper, molybdenum, and boron, and the following elements satisfy the relationship 4Cr[%]-5Mo[%]-10Ni[%]-2Cu[%]-Mn[%]>0.</p> |
申请公布号 |
WO2009123076(A1) |
申请公布日期 |
2009.10.08 |
申请号 |
WO2009JP56411 |
申请日期 |
2009.03.24 |
申请人 |
NIPPON STEEL CORPORATION;HASEGAWA, YASUSHI;MIZOGUCHI, MASAKI;WATANABE, YOSHIYUKI;YOSHIDA, SUGURU;OKADA, TADAYOSHI |
发明人 |
HASEGAWA, YASUSHI;MIZOGUCHI, MASAKI;WATANABE, YOSHIYUKI;YOSHIDA, SUGURU;OKADA, TADAYOSHI |
分类号 |
C22C38/58;C22C38/00;B21B3/02;C21D8/02 |
主分类号 |
C22C38/58 |
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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