Recently, Baosteel Group to give full play to the advantages of technology and equipment, the successful completion of the country's largest specification, the highest steel grade BGC BG2250-125 nickel base alloy casing product batch production tasks. The casing diameter is 193.68 mm, thickness up to 12.7 mm (193.68 x 12.7 mm diameter. So far, Baosteel nickel alloy casing products to achieve a comprehensive coverage of steel and specification.

In recent years, efforts to develop the exploitation of high acid corrosion of oil and gas resources continue to increase domestic oil, nickel alloy casing products as steel product quality, strategic materials are included in the national energy industry. Baosteel in order to protect the national energy exploitation and development of timber supply as its own responsibility, long-term commitment to the production and development of high-end oil well tube. Since 2006, Baosteel set up production and marketing research team, a special development of nickel based alloy casing products. After full research, has developed a series of BG2532, BG2250 and BG2830 nickel base alloy products, has become the first nickel base alloy oil casing product supply capacity of enterprises in the country.

In 2011, Sinopec Southwest Bureau to Baosteel ordered 177.8 x 12.65 mm diameter BG2830-110, diameter 193.68 x 12.7 mm (supporting the coupling specification for phi 216 * 26 mm BG2250-125 series of nickel based alloy casing contract. Among them, with a diameter of 193.68 mm x 12.7 mm BG2250-125 BGC products not only high alloy content, large size, and the sealing performance of the strength and the product gas has a very high demand, difficult production. In order to meet the needs of users, the Ministry of science and technology development, Baosteel manufacturing management department, special steel division, strip steel division and Baosteel Research Institute of sincere cooperation, give full play to the team's research and development capabilities, advanced equipment and consistent system manufacturing technology and other advantages, deformation, cold processing, special sealing buckle design and processing technology of the product the hard research. Team members after several efforts to overcome many difficulties, and finally successfully produced the largest domestic specifications, the highest grade nickel base alloy casing products.