What kind of materials are petroleum casing made of?
There are many different materials of oil casing, basic carbon steel, J55, L80, P110 and other special materials such as 3 cr, 9 cr, 13 cr, 22 cr, etc., mainly carbon dioxide resistant and known as hydrogen sulfide resistant materials such as 90 SS, 95 ss, etc. In addition, higher grade and nichrome alloy pipes […]