Baosteel has successfully developed nickel alloy oil casing in early 2008 and has realized the potential to develop bulk production. The manufacturing technology for the product has been dominated by foreign producers for many years. The product finds wide applications in China National Petroleum Corp.’s natural gas field in Sichuan Longgang and applied 8 patents in craft and technology. Baosteel now has successfully developed 2 specs and several grades of nickel alloy oil casing.
