In this paper. three different types of pipeline materials and four types of corrosion inhibitors were test using immersion method in the crude oil solutions collected from six fields southern Iraq. The influence of crude oil composition; temperatures and pipeline roughness were performed. As a result the X80 carbon steel has lower corrosion rate. https://www.bekindtopets.com/save-now-Aqua-Pure-3MFF101-Full-Flow-Drinking-Water-System-Replacement-Cartridge-flash-choice/