As a trusted supplier of copper-nickel seamless tubes, we offer high-quality heat exchanger tubes made from ASTM B111/ASME SB111/ASME SB466 C71500, featuring a 70/30 copper-nickel alloy. Our tubes are available in custom dimensions, including outer diameter (OD) and wall thickness (WT), to meet the specific requirements of various industrial applications. Known for their excellent corrosion resistance and durability, these tubes are ideal for use in harsh environments, including marine and chemical industries. We provide reliable, precision-crafted products tailored to customer specifications.