Copper; tubes and pipes, of copper-nickel base alloys (cupro-nickel) or copper-nickel-zinc base alloys (nickel silver)

HS code 741122 covers the import and export of copper tubes and pipes made from copper-nickel base alloys, also known as cupro-nickel, or copper-nickel-zinc base alloys, also known as nickel silver. These specialized copper alloy products are widely used in various industries, including plumbing, heat exchange systems, and marine applications, due to their corrosion resistance, durability, and thermal conductivity properties. As a key component in many industrial and commercial products, the trade of these copper tubes and pipes plays a significant role in the global economy.

The production of copper tubes and pipes covered under HS code 741122 typically involves a multi-step process. First, the copper-nickel or copper-nickel-zinc alloy is produced by melting and alloying the raw materials. The molten alloy is then cast into billets or ingots, which are subsequently hot-rolled or extruded to form the initial tube or pipe shape. Further processing, such as cold-drawing, annealing, and finishing, may be employed to achieve the desired dimensions, surface finish, and mechanical properties of the final product.

The main inputs required for the production of copper tubes and pipes under HS code 741122 include copper, nickel, and zinc as the primary raw materials. Additionally, specialized machinery and equipment, such as melting furnaces, rolling mills, and drawing machines, are necessary to transform the raw materials into the finished copper alloy tubes and pipes. Energy sources, such as electricity or natural gas, are also crucial inputs for the various manufacturing stages.

The copper tubes and pipes produced under HS code 741122 are primarily used as components in a wide range of applications, including 741010 Copper; unwrought for further processing, 741420 Copper; table, kitchen or other household articles and parts thereof, 741510 (Copper; nails, tacks, staples (other than those of heading 83.05), screws, bolts, nuts, screw hooks, rivets, cotters, cotter-pins, washers and similar articles), and 848210 Ball or roller bearings. These copper alloy tubes and pipes are valued for their corrosion resistance, thermal conductivity, and durability, making them essential components in various industries, including plumbing, HVAC, and marine applications.