In this paper, some corrosion failures of austenitic steel expansion joint in FCC unit are discussed, the factors affecting corrosion analysed and some prevention measures proposed.

• 本文列举奥氏体不锈钢膨胀节在催化裂化装置使用中发生腐蚀破坏事例，分析腐蚀破坏的各种因素，提出预防的一些措施。