Hard Copper Wire

Hard copper wire is a rigid copper conductor made from high-purity copper through processes such as drawing and annealing. It features a smooth surface and a regular circular cross-section, offering good electrical conductivity, thermal conductivity, and chemical stability. Compared to soft copper wire, hard copper wire undergoes fewer annealing processes, resulting in greater rigidity and resistance to bending or deformation, as well as higher mechanical strength. It is suitable for applications that require a fixed shape or must withstand mechanical stress, such as overhead transmission lines, fixed internal wiring in electrical equipment, and busbars in distribution cabinets. With its high conductivity, hard copper wire effectively reduces energy loss in power transmission and electrical devices, while its stable physical properties ensure long-term reliability, making it a commonly used foundational conductive material in power engineering and electrical manufacturing.