Analisa Terjadinya Kebocoran pada Salah Satu Fitting Sistem Perpipaan Balancing Line Tank pada Line Number 3”- WW – 37012 - 1B

  • Alfin Rachmat Ardhiansyah Politeknik Perkapalan Negeri Surabaya
  • Emie Santoso Politeknik Perkapalan Negeri Surabaya
  • Nopem Ariwiyono Politeknik Perkapalan Negeri Surabaya
Keywords: Corrosion, Lifetime, Immersion Test


Corrosion is an electrochemical process in which atoms will propose acidic substances and form positive ions (cations). This will cause the flow of electrons from one place to another on the metal surface. Corrosion occurs through chemical reactions or electrochemical reactions in metals or metal alloys that occur in corrosive environments. Corrosion reaction process consists of anodic reaction and cathodic reaction, if one of the reactions occurs then it causes corrosion on the metal. In analyzing this time, which is to repair a leak in one of the piping systems installation which is an elbow. Where the elbow must be replaced before the lifetime desired by the company. The main cause of this leak is internal corrosion. Where is this internal corrosion caused by the nature of the material that is not resistant to the nature of the fluid. This corrosion analysis I used the immersion test method, while the immersion test is a material testing for corrosion. Test this material on the ASTM G31-72 standard. The results obtained the average value of the corrosion that is equal to 1.04 mm / year and 9.76 mm / year. As for the lifetime value of 5.24 years and 0.632 years. Testing of this material is done with 2 types of fluids, according to the content in the fluid.