Recently, the largest copper-nickel alloy pipe manufacturer in China and the world: GSJC Copper Alloy Technology Group has successfully industrialized the production of ultra-large and thick copper-nickel alloy pipes for ships with a diameter of 419 mm and a thickness of 9 mm, which is currently the largest in the international market. , The thickest seamless copper-nickel alloy pipe.
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The ultra-large and ultra-thick copper-nickel alloy pipes for ships are difficult to process and have high added value. At present, there are no enterprise manufacturers in China that can produce them, and only South Korea can produce them internationally. Because the product size is too large and wide, reducing friction and controlling the extrusion speed are the key to solving the problem.
GSJC started the research and development of high-performance copper alloy materials and products in 2010. After ten years of research, the company has successfully broken through the 440mm large-diameter copper-nickel alloy ingot research technology in the melting and casting process, and the extrusion of 250mm diameter pipes. With the breakthrough of pipe materials, various copper-nickel alloy pipe series products under 419 mm can be stably produced so far, which are used in seawater desalination and marine engineering.
As the world’s largest shipbuilding country, China has attached great importance to the strategic position of the shipbuilding industry in promoting the development of the national economy in recent years. In 2020, GSJC will produce a total of more than 600 tons of copper-nickel alloy pipes, of which 20% are exported to developed countries such as France, Italy, Europe and the United States. Other finished pipes are widely used in China`s ocean engineering, desalination and ships industries.