Stainless steel materials are characterized by strong corrosion resistance, high mechanical strength, light weight and so on, and are widely used in various projects. In the shipbuilding industry, stainless steel materials are commonly used in the manufacture of hull structures, pipelines, screw pulp, electrodes and some other parts. In addition, stainless steel materials are also commonly used in the construction of offshore oil platforms and the construction of marine oil and gas pipelines and other fields.