PRACTICE OF THE USE OF ANODES FROM CORROSION-RESISTANT STEELS BY CATHODIC PROTECTION OF GAS PIPELINES

Annotation. Modern gas-transport system of Ukraine one of most powerful in Europe and is important making system of transporting of gas, which takes began from Central Asia to the countries of the European union. It provides the supply of ten of milliards of cu.m.s of natural gas to both the domestic users and users 19 European states. Gas pipelines are designed for exploitation during decades in the conditions of action of aggressive environment and operating loadings, therefore one of the most important questions, which is examined at planning of gas pipeline, there is a question of defence of gas pipeline from corrosion. More frequent than all the metal of pipes of gas pipelines is added to the action of electrochemical corrosion. For protecting from it and minimization of losses of metal cathode defence is more frequent than all used. The most widespread variant of the combined method of defence is the use of cathode defence in an aggregate with causing of insulating coverage. Effectiveness of cathode defence substantially depends on the state of the inflicted insulating coverage on a pipeline. In this article electrochemical descriptions of anodes of the station of cathode defence were investigated made from corrosion-resistant austenitic steel of 12Х18Н10Т. Research of electrochemical descriptions of anodes from steel of 12Х18Н10Т on exploitation in composition the stations of cathode defence rotined the improvement of corrosive durability of on-the-road steels