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1.设备选材概况 我厂为某化工装置制造重沸器,其工况条件为:工作压力0.6MPa,1.作温度160℃,介质为稀硫酸 为满足该设备运行条件,制造材料选用了00Crl8Nil4Mo2Cu2奥氏体不锈钢。该钢是在00Crl8Nil2Mo2钢的基础上,加入2％左右的铜发展起来的新材料。它在稀硫酸、磷酸等还原性酸,以及醋酸、甲酸等有机酸中,其耐腐蚀性能均优于00Crl8Nil2Mo2和00Crl8Nil4Mo3不锈钢,是耐硫酸腐蚀的较理想材料。在室温条件下,对中等浓度的硫酸介质,也具有较好的耐腐蚀性能。
1. Equipment Overview I plant for the manufacture of a chemical plant reboiler, the working conditions are: working pressure 0.6MPa, 1. For temperature 160 ℃, the medium is dilute sulfuric acid to meet the equipment operating conditions, the selection of materials used in the manufacturing 00Crl8Nil4Mo2Cu2 Austenitic stainless steel. The steel is based on 00Crl8Nil2Mo2 steel, adding about 2% of the development of new materials of copper. It is dilute sulfuric acid, phosphoric acid and other reducing acids, and acetic acid, formic acid and other organic acids, its corrosion resistance are better than 00Crl8Nil2Mo2 and 00Crl8Nil4Mo3 stainless steel, sulfuric acid corrosion is more ideal material. At room temperature, the moderate concentration of sulfuric acid medium, but also has good corrosion resistance.