The Science of Continuous Crystallization
Our continuous cast copper rod uses a continuous casting process that sets it apart. Liquid copper flows through a water-cooled crystallizer. The copper solidifies directly into rod form as it moves downward. The entire process runs without interruption. This continuous operation gives us high production efficiency. But more importantly, the process produces a rod with exceptional internal uniformity. The grain structure is fine and consistent throughout. This uniformity is critical for downstream processing. Cable manufacturers need consistent material for high-speed drawing. The uniform structure reduces breakage and improves wire quality. Our team monitors temperature carefully during production. Copper temperature must stay consistent. Fluctuations cause uneven crystallization. Uneven crystallization leads to breakage during drawing.
Temperature Control and Grain Structure
Temperature control is the heart of this process. We monitor the copper temperature at multiple points. The cooling rate also matters. Too fast and the grain structure becomes brittle. Too slow and the grains grow too large. Our team has found the optimal settings through years of experience. They adjust the process as needed based on sample analysis. We take cross-section samples regularly. We polish and examine them for grain structure. A uniform structure confirms the process is stable. If the structure looks uneven, our workers adjust the casting speed. This proactive approach prevents quality issues. We also keep complete records for every batch. This traceability helps us track issues to the source. It also supports continuous improvement.
Size Options and Technical Specifications
We stock continuous cast copper rod in 16mm and 20mm diameters. The material is T2 copper. Production follows GB/T5585.1-2026. Copper purity reaches Cu≥99.90%. Total impurities stay below 0.10%. Conductivity is ≥97.3% IACS. Resistivity at 20°C stays ≤0.0177 Ω·mm²/m. Density is 8.9 g/cm³. Tensile strength ranges from 220 to 260 MPa. Yield strength exceeds 170 MPa. Hardness is 65 to 90 HV. Elongation is 17% or higher.
Why Continuous Casting Matters
Continuous cast copper rod offers distinct advantages for demanding applications. The uniform grain structure supports reliable drawing. The rod performs consistently from start to finish. This reduces production stops. It also reduces waste. Cable manufacturers appreciate these benefits. The rod also has excellent surface quality. The casting process produces a smooth surface. This reduces defects during drawing. We have supplied cable manufacturers for many years. Export sales continue to grow. The product serves both domestic and international customers. The continuous casting process gives us an edge in quality. We have refined it over decades of operation.
Order and Production Information
We start production right after order confirmation. Standard sizes ship within one week. Custom requirements take slightly longer. The minimum order is 1000 kilograms. Mixed specifications are allowed. Third-party inspection is welcome at our factory. Our raw material inventory stays well-stocked. We accept USD, EUR, and CNY.
Technical Parameters
|
Parameter |
Value |
|
Material Grade |
T2 Copper |
|
Copper Purity |
Cu≥99.90% |
|
Standard |
GB/T5585.1-2026 |
|
Electrical Conductivity |
≥97.3% IACS |
|
Resistivity (20°C) |
≤0.0177 Ω·mm²/m |
|
Density |
8.9 g/cm³ |
|
Tensile Strength |
220–260 MPa |
|
Yield Strength |
≥170 MPa |
|
Hardness |
65–90 HV |
|
Elongation |
≥17% |
|
Stock Sizes |
16mm, 20mm |
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