Recently, the China Classification Society (CCS) Shanghai Branch issued an LNG marine Invar approval certificate to BGTG Special Steel Group at the BGTG Special Steel LNG marine Invar alloy certification ceremony. BGTG became the first manufacturer in China and the second in the world to obtain the thin-film LNG marine Invar alloy approval.
LNG ships are internationally recognized as high-tech, difficult and high value-added products. They are known as "super freezers at sea" and are "the crown jewel of shipbuilding" in the world. Invar is the core material of LNG ships. Known as the pearl in the pearl. Four years ago, the research project of the Ministry of Industry and Information Technology of "Key Technology Application Research of LNG Marine Invar and Insulation Box Plywood" led by Hudong Zhonghua Shipbuilding (Group) Co., Ltd. was officially launched. BGTG Special Steel Group. undertook the development of Invar alloy. The Shanghai Branch actively tracked the development process, digested and absorbed the company's technological achievements, combined with domestic and foreign relevant standards, formulated the "Guidelines for the Inspection of LNG Marine Invar Alloys" to fill the gaps in domestic technical standards, and actively participated in the production, testing, and process demonstration of Invar alloys. , Initiate the work of Invar alloy approval with GTT company. After four years of joint efforts from all parties concerned, BGTG Special Steel Group. successfully completed the industrial trial production of Invar alloys, and the performance fully met the requirements for approval. At the same time, it obtained CCS certification and GTT certification, and realized LNG marine Invar alloys localization.