Since the beginning of the twenty-first century, the recovery of the global nuclear energy and its challenges, suggesting the world's nuclear power development is accelerated and turned to the stage of rapid development, China's nuclear power construction by the moderate stage of development. To carry out nuclear power equipment manufacturing high-end development and application of Welding Material, nuclear power high-end Welding Material domestically, has become the inevitable trend of large-scale nuclear power equipment manufacturing autonomy. Announced by the Chinese long-term nuclear power development plan, 2020, in running nuclear power capacity has reached 40 million kilowatts; September 2010, the State Council issued State Council on the decision to speed up the cultivation and development of strategic emerging industries identified nuclear power as a focus on the development of new energy projects. In the "12th Five-Year" period, the domestic nuclear power equipment manufacturing industry will usher in a huge market space of nearly 500 billion yuan, the amount of nuclear high-end welding materials will greatly increase, which is bound to drive the nuclear high-end application market of welding materials the formation and development.

Month 400 tons of the total 2010 production of welding materials, more than the sum of the United States, Japan, Germany, three welding material production, the electrode arc welding electrode production accounted for 75% of mechanization and automation welding wire accounted for 25% in the manufacturing of key products of the nuclear island, the application of high-end welding consumables is still almost blank. The next few decades, China's nuclear power equipment to produce the required high-end welding consumables will continue to increase market demand for high-end welding consumables will have broad space for development.
 
The main technical characteristics of nuclear power high-end welding materials is more stringent control of the harmful elements in the welding material elements are vulnerable to the impact of the equipment operating conditions, such as: the trace elements for the reactor pressure vessel welding consumables and susceptible to irradiation affect control of the elements, welding material for a loop, strict control of Cu, Co, B, and V content; strict control of the content of Sn, Sb, As and other trace elements. Starting from the point of view to control the weld crack sensitivity, strict control of the S, P content, O, N element content of the testing requirements. The same time, starting from the welding consumables own technical characteristics and the welding process, the requirements of welding consumables anti-stomata, anti-crack and process performance and slag also has a higher technical requirements, the permeability, the flux slag off a relatively high the technical requirements to ensure that the plasticity of the weld, impact toughness, crack resistance, to meet technical requirements for manufacture of nuclear power production. The technical characteristics of nuclear grade welding materials can be summed up as follows: the element of control, mechanical performance requirements; long production cycle; involved in a wide field; the high level of quality assurance; high production costs.

China R & D of high-end welding materials, and will break the monopoly of Europe and the United States and Japan on the Chinese nuclear power high-end technology and market of welding materials, and establish a national brand, get rid of the status of nuclear power high-end welding material dependence on imports, and gradually realize the localization of high-end welding consumables to promote China's nuclear power equipment manufacturing, installation, maintenance and other key technologies independently process.