| 摘要 |
PROBLEM TO BE SOLVED: To provide an acid corrosion resistant steel exhibiting excellent corrosion resistance even in any environment of low temperature/low sulfuric acid concentration and medium temperature/medium sulfuric acid concentration without adding large quantities of various alloy elements. SOLUTION: The acid corrosion resistant steel has a composition comprising, by mass, 0.001 to 0.2% C, 0.01 to 3.0% Si, 0.01 to 3.0% Mn, 0.001 to 0.3% Al, 0.01 to 2.0% Cu, 0.01 to 2.0% Ni and 0.01 to 0.2% Co, and in which the content of P is regulated to≤0.035% and the content of S is regulated to≤0.030%, and, if required, further comprising prescribed amounts of one or more kinds of elements selected from the group consisting of Mo, W, Sb, Sn, Se, Pb, Nb, V, Ti, Ta, Zr, B, Mg, Ca, Y, La and Ce, and the balance Fe with inevitable impurities. COPYRIGHT: (C)2007,JPO&INPIT
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