| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an austenitic stainless steel excellent not only in brazing properties, but also in corrosion resistance under an environment where condensed water with a low pH containing nitrate ions or sulfate ions is generated by condensation of combustion exhaust gas, and also under an environment of aqueous solution containing chloride ions. <P>SOLUTION: The austenitic stainless steel contains, by mass%, ≤0.080% C, 1.2 to 3.0% Si, 0.4 to 2.0% Mn, ≤0.03% P, ≤0.003% S, 6.0 to 12.0% Ni, 16.0 to 20.0% Cr, 0.2 to 3.0% Cu, 0.002 to 0.10% Al, 0.030 to 0.150% N, and 0.1 to 1.0% Mo, and the balance being Fe and inevitable impurities, wherein formula (A) 1.6≤ [Cu] × [Si] ≤4.4, and formula (B) 0.16≤ 2[N] + [Mo] ≤1.0 are satisfied. Here, [Cu], [Si], [N], and [Mo] are contents of each element shown by mass%. <P>COPYRIGHT: (C)2013,JPO&INPIT |
