As a leading supplier of copper alloy seamless tubes in China, we offer high-quality heat exchanger tubes made from ASTM B111 UNS C70600 (CuNi 90/10) copper-nickel alloy. These tubes are designed for excellent corrosion resistance and thermal conductivity in marine and industrial heat exchange applications. With a 1-inch (25.4 mm) outer diameter and a wall thickness of 14 BWG (2.11 mm), they are built to withstand harsh conditions and provide long-lasting performance. Each tube comes in a standard length of 10,000 mm, making it an ideal choice for various heat exchanger systems in power plants and industrial facilities.