Full-Casting Process for Superior Surface Quality
Our continuous cast copper wire rod uses a fully continuous casting approach. The copper cools evenly inside a water-cooled crystallizer. This produces a rod with a remarkably smooth surface. Surface quality is critical for wire drawing. Even minor surface defects become major problems during drawing. They cause breaks and defects in the finished wire. Our process minimizes these risks. The smooth surface also reduces friction during drawing. This allows higher drawing speeds. It also extends die life. Our team regularly takes cross-section samples. We polish and examine them for internal quality. We look for voids, porosity, and grain uniformity. A clean internal structure confirms the process is stable.
Metallurgical Structure Verification
We take metallurgical verification seriously. Our workers prepare samples for microscopic examination. They look for grain size and distribution. Fine, uniform grains indicate good material quality. Large or uneven grains indicate process problems. We also check for porosity. Even tiny voids can cause problems during drawing. The rod would break at the void location. Our team rejects any material that shows issues. We also check the surface condition regularly. The surface should be smooth and free of defects. Our workers have developed a trained eye for spotting problems. They inspect every coil before it leaves the factory. This careful approach ensures consistent quality.
Size Options and Technical Data
We stock continuous cast copper wire 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.
Quality-Conscious Cable Production
Continuous cast copper wire rod meets the needs of quality-conscious cable manufacturers. The smooth surface supports reliable drawing. The internal structure ensures consistent performance. Cable makers who produce high-quality wire prefer this product. It reduces quality control rejections. It also improves customer satisfaction. Their own customers get better wire. We have supplied cable manufacturers for many years. Export sales are growing steadily. The product serves a wide range of cable applications. From power cables to communication cables, the rod performs well. Our process has been refined over many years of operation.
Order and Production Information
We keep raw materials ready for production. Standard sizes ship within one week. Custom requirements take one to two weeks. The minimum order is 1000 kilograms. Mixed specifications are allowed. We welcome third-party inspection at our facility. Our team processes orders efficiently. 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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