Copper Ingots
Oxygen-Free High-Purity Isotopic Copper Ingots (6N / 99.9999%)
Fine 1 kg copper ingots, each individually sealed in polyethylene wrap to prevent surface oxidation.
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Yes, trial orders are available for most products, excluding custom-engineered alloys. Please select the “Trial quantity required” option when submitting your RFQ form.
Yes, every delivery includes a lab certificate to verify product purity and ensure batch-to-batch consistency.
Yes, we assist with all necessary documentation to help streamline logistics, compliance, and customs clearance — regardless of the products combination or technical specifications in your order.
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Ultra High-Purity Copper: Material Profile
Copper is a transition metal with an incomplete electron shell, which allows it to form compounds in multiple valence states — most notably monovalent (Cu⁺) and divalent (Cu²⁺). It melts at 1083 °C, boils at 2600 °C, and has a vapor pressure of 8.6 × 10⁻⁵ mm Hg at 1000 °C. Among metals, copper stands out for its exceptionally high electrical conductivity (1.68 μΩ·cm) and thermal conductivity (0.941 cal/cm·°C·s).
These physical and chemical characteristics, along with excellent mechanical strength and ductility, make high-purity copper indispensable for advanced electronics and precision engineering. However, the performance of copper in such applications is highly sensitive to impurity levels. Even trace amounts of elements like oxygen, chromium, vanadium, manganese, titanium, zirconium, or niobium can degrade its conductive properties.
Product Form and Handling
High-purity copper is typically supplied as trapezoidal ingots — compact, brownish-red blocks engineered for controlled remelting, processing, or storage. While similar in appearance to bars, copper ingots are specific to non-ferrous metallurgy and precision-grade production workflows. Each ingot is individually sealed in inert or protective packaging to prevent surface oxidation and ensure purity preservation during transit and storage.
Why Purity Matters
Industrial demands are shifting toward not just high-quality materials but also stable logistics, clean handling, and ready-to-use formats — especially for export and integration into ultra-sensitive manufacturing chains. Ultra-pure copper enables reliable performance in environments where even microscopic contamination can result in failure or inefficiency.
Applications of Ultra High-Purity Copper (5N–6N)
Ultra high-purity copper, valued for its exceptional electrical conductivity, thermal performance, and biocompatibility, is essential in advanced technologies. For critical industrial and scientific use, purity levels of 99.999% (5N) and above are required. These ultra-pure grades are indispensable in:
