C10100 Copper Bar is a high‑purity oxygen‑free electronic copper bar conforming to ASTM standards, with minimum copper purity of 99.99% and extremely low oxygen content. It delivers ultra‑high electrical and thermal conductivity, excellent ductility, and good workability for machining, milling, and drilling. It is free from hydrogen embrittlement and stable in high‑temperature and vacuum environments. Featuring uniform structure, precise dimensions, and smooth surface, C10100 is the preferred material for high‑end electronics, vacuum devices, and precision components requiring extreme purity and reliability.