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TAIZHOU ZHENGSHING VALVE CO., LTD.About TiemaZhongjia, Fengjiang, Luqiao, Taizhou City, Zhejiang, ChinaTaizhou Tiema Faucet Manufacturing Co., Ltd. is a professional R&D manufacturer of high-end bathroom kitchen faucets. We are committed to creating high-quality and fashionable indoor space for thousands of families.TAIZHOU ZHENGSHING VALVE CO., LTD.About TiemaZhongjia, Fengjiang, Luqiao, Taizhou City, Zhejiang, ChinaTaizhou Tiema Faucet Manufacturing Co., Ltd. is a professional R&D manufacturer of high-end bathroom kitchen faucets. We are committed to creating high-quality and fashionable indoor space for thousands of families.TAIZHOU ZHENGSHING VALVE CO., LTD.TAIZHOU ZHENGSHING VALVE CO., LTD.TAIZHOU ZHENGSHING VALVE CO., LTD.TAIZHOU ZHENGSHING VALVE CO., LTD.TAIZHOU ZHENGSHING VALVE CO., LTD.TAIZHOU ZHENGSHING VALVE CO., LTD.TAIZHOU ZHENGSHING VALVE CO., LTD.TAIZHOU ZHENGSHING VALVE CO., LTD.TAIZHOU ZHENGSHING VALVE CO., LTD.TAIZHOU ZHENGSHING VALVE CO., LTD.TAIZHOU ZHENGSHING VALVE CO., LTD.TAIZHOU ZHENGSHING VALVE CO., LTD.TAIZHOU ZHENGSHING V

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  6. Copper-Brass Raw Materials – Detailed Classifications

Copper-Brass Raw Materials – Detailed Classifications

2025-11-11
1. Copper Raw Materials​
Classified by purity and use, main types include:​
  • High-purity copper (99.99%+ Cu): For electronics (semiconductors, connectors) due to ultra-low impurity interference.​
  • Electrolytic copper (99.95%-99.99% Cu): The most common industrial grade, processed into wires/tubes for power transmission and refrigeration.​
  • Oxygen-free copper (low oxygen content <0.003%): Resists corrosion and high-temperature deformation, used in aerospace pipelines and audio cables.​
2. Brass Raw Materials​
Alloys of copper (60%-90%) and zinc, categorized by zinc content and additives:​
  • Common brass (60%-70% Cu): Good ductility, made into hardware (faucets, hinges) and decorative parts.​
  • High-zinc brass (50%-60% Cu): Higher strength, used for mechanical parts (gears, valves).​
  • Special brass (adds Sn, Pb, Mn): E.g., leaded brass (easy cutting, for bolts) and tin brass (corrosion-resistant, for marine components).
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