采用电化学方法研究了304、304L和316L三种不锈钢在不同温度30% CaCl₂溶液中的点蚀敏感性。结果表明：作为冷凝液的30% CaCl₂溶液中的Cl^-含量较高，304不锈钢因碳含量较高，其点蚀敏感性高于304L不锈钢的；且温度对材料的点蚀敏感性也有较大影响。316L不锈钢在30% CaCl₂溶液中的耐点蚀性优异。

The pitting sensitivities of 304, 304L and 316L stainless steels in 30% CaCl₂ solution at different temperatures were investigated by electrochemical methods. The results show that the content of Cl^- in 30% CaCl₂ solution as condensate was relatively high, and the pitting sensitivity of 304 stainless steel was higher than that of 304L stainless steel due to the higher carbon content. And the temperature also had a greater impact on the pitting sensitivity of the materials. 316L stainless steel had excellent pitting resistance in 30% CaCl₂ solution.