Due to its high strength,fracture toughness,fatigue resistance,and superior mechanical properties,the large-scale-application of S420 ultra high strength steel in deep water jacket can greatly reduce the amount of steel so as to effectively decrease the total weight of Jacket and save the overall development costs.Currently however,due to lack of large-scale-application practice of demestic S420 ultra high strength steel in deep water jacket,its actual application effects cannot be evaluated and there remains potential risks.This paper discusses application risks and solutions aiming to providing reference and experience for the following large-scale-application in deep water jacket.
关键词
S420超高强钢/深水导管架/风险分析/应对措施
Key words
S420 ultra high strength steel/deep water jacket/risks analysis/solutions