Surface Protection That Extends Product Life
Our tinned copper busbar starts with a high-quality T2 copper core. We then add a uniform tin coating. This coating serves a critical purpose. It prevents oxidation. It also improves solderability. In humid environments, bare copper can corrode over time. The tin layer acts as a shield. Our tin coating process applies an even layer across the entire surface. We control the plating thickness precisely. Too thin and the protection fails. Too thick and the fit may be affected. Our plating line runs at consistent parameters. This gives you a reliable product every time. The tin layer also helps with assembly. Soldered connections form more easily. This saves time during your panel assembly work.
Available Stock and Technical Data
Our tinned copper busbar uses the same size range as our T2 series. Thickness goes from 2.7mm to 12mm. Width spans 15mm to 125mm. Popular sizes like 12×120, 12×100, 10×125, 8×80, 6×60, 5×40, 4×30, and 3×25 are ready to ship. The "L" prefix means the bar has an L-shaped bend. Standard length is 6000mm. Cut to any size upon request. Production follows GB/T5585.1-2026. Copper base purity reaches Cu≥99.90%. Conductivity measures ≥97.3% IACS. Resistivity stays below 0.0177 Ω·mm²/m at 20°C. Density is 8.9 g/cm³. Tensile strength ranges from 220 to 260 MPa. Yield strength exceeds 170 MPa. Hardness sits between 65 and 90 HV. Elongation exceeds 17%.
Better Conductivity Than Bare Copper in Harsh Conditions
Here is something interesting about tinned busbar. In high-temperature environments, bare copper develops a dark oxide layer. This oxide layer increases resistance. The tin layer on our product prevents this. Your connections stay stable over the long term. Our tin coating also resists sulfur compounds. This makes our product suitable for industrial areas with air pollution. Many of our customers in the renewable energy sector choose tinned busbar for outdoor installations. They need both conductivity and protection. Our product gives them both.
Fresh Stock for Fast Order Fulfillment
We keep a steady supply of raw materials. This allows us to start production as soon as you place your order. Standard sizes typically ship within one week. Custom orders take a bit longer. We produce everything in our own workshop. The entire process stays under our control. Our team has run this production line for years. They know how to maintain quality across large batches. We also support flexible ordering. Mix different sizes in one shipment. This helps you manage inventory more efficiently.
Tinned copper busbar performs well in power distribution cabinets, switchgear, and energy storage systems. Applications that need oxidation resistance benefit most. Our customers include panel builders and equipment manufacturers. We also work with renewable energy projects. The plating quality meets international expectations.
Technical Parameters
|
Parameter |
Value |
|
Material Grade |
T2 Copper Base + Tin Coating |
|
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% |
|
Standard Length |
6000mm (cut to size) |
Hot Tags: hdhc tinned copper busbar, China hdhc tinned copper busbar manufacturers, suppliers, factory
