PENGARUH KECEPATAN ALIRAN FLUIDA TERHADAP LAJU KOROSI PIPA GALVANIS JIS G3444-ANMAN

Abstract

Corrosion phenomenon is a natural process that always occurs in metals, especially in galvanized pipes used for distribution of drinking water. Pipe is one component that is attacked by electrolytes or corrosive media such as water, crude oil, gas or other liquids. In addition to corrosive media, the flow rate also affects the corrosion rate. Corrosion rates can be measured by many methods. One method is losing weight. The purpose of this study is to determine the corrosion rate that occurs in galvanized pipe material used as a distribution pipe for drinking water in the H2SO4 environment. This study uses galvanized pipes as specimens with variations in testing time of 6 hours, 12 hours, 18 hours, 24 hours, 30 hours, 36 hours, composition of H2SO4 3%, 4%, and 5% and fluid flow velocity 0.128 m / s, 0.071 m / s and 0.038 m / s. Based on testing, weight loss increases with the length of the specimen in the solution and the faster the fluid flow rate, the higher the corrosion rate will occur.

Keywords: Corrosion, galvanized pipe, H2SO4, velocity of fluid flow rate.