发明名称 LOW ALLOY STEEL EXCELLENT IN RESISTANCE TO CORROSION BY HYDROCHLORIC ACID AND CORROSION BY SULFURIC ACID AND WELD JOINT COMPRISING THE SAME
摘要 <p>The present invention provides a low alloy steel and a weld joint thereof excellent in hydrochloric acid corrosion resistance and sulfuric acid corrosion resistance, said low alloy steel containing, in mass, C: 0.001 to 0.2%, Si: 0.01 to 2.5%, Mn: 0.1 to 2%, Cu: 0.1 to 1%, Mo: 0.001 to 1%, Sb: 0.01 to 0.2%, P: 0.05% or less, and S: 0.05% or less, with the balance consisting of Fe and unavoidable impurities; and the acid corrosion resistance index AI of said low alloy steel being zero or positive. <??>Here, said AI is given by the following expression, <DF>AI/10,000 = 0.0005 + 0.045 x Sb% - C% x Mo%, </DF> where % means mass %. <IMAGE></p>
申请公布号 KR20040066130(A) 申请公布日期 2004.07.23
申请号 KR20047007666 申请日期 2002.11.15
申请人 发明人
分类号 B23K9/23;C22C38/00;B23K35/30;C22C38/04;C22C38/06;C22C38/08;C22C38/12;C22C38/16;C22C38/60 主分类号 B23K9/23
代理机构 代理人
主权项
地址