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前言超低碳 SUS36不锈钢,是在奥氏体不锈钢中加入2%左右的 Cu 和 Mo,从而提高了钢的耐蚀性。它是一种用于硫酸、磷酸和盐酸等腐蚀介质中的不锈耐酸钢。然而,这一些含 Mo、Cu 的高 Cr—N_1不锈钢,在浓度为20—60%的热硫酸中,也遇到了一些应力腐蚀破裂的事例。在维尼纶生产中不锈钢设备腐蚀调查结果表明:SUS36不锈钢醛化设备遭到相当严重的腐蚀,在设备材料、加工条件、表面处理、醛化液组分及生产工艺相同的情况下,设备
Preface Ultra-low carbon SUS36 stainless steel, is added to the austenitic stainless steel about 2% of Cu and Mo, thereby enhancing the corrosion resistance of steel. It is a stainless acid-resistant steel used in corrosive media such as sulfuric acid, phosphoric acid and hydrochloric acid. However, some high-Cr-N 1 stainless steels containing Mo and Cu also encountered some cases of stress corrosion cracking in hot sulfuric acid having a concentration of 20 to 60%. In the vinylon production stainless steel equipment corrosion survey results show that: SUS36 stainless steel hydroformylation equipment has been very serious corrosion, equipment materials, processing conditions, surface treatment, hydroformylation fluid components and production processes under the same circumstances, the equipment