9um 12um 18um 35um Electronic Soft Pure Copper Foil
Description
RA Copper Foil is rolled from pure copper ingots, the process
including purifying copper ores, make into copper cathodes,
ingoting, rolling, annealing, washing, testing, slitting and
packing. Our copper ores are imported from South America, which
were famous for their copper mining.
This is high quality copper and has a wide range of applications
based on conductivity, corrosion resistance, workability, and
beauty.
110-anneal (Electrolytic Tough Pitch or ETP) dead soft. Min 99.96%
CU
| Item | Unit | Nominal Thickness |
| 9um | 12um | 18um | 35um |
| Mass Per Unit | g/m2 | 80±3 | 107±3 | 153±5 | 305±5 |
| Purity | Cu | % | ≥99.97 |
| Surface Roughness | S-side | Ra um | ≤0.2 |
| M-side | Rz um | 0.8-1.5 |
| Tensile Strength | Rm(Hard) | N/mm2 | 420-440 | 450-470 | 460-480 |
| Rm(soft) | N/mm2 | 160-180 | 180-220 | 200-230 |
| Elongation | A50(Hard) | % | 0.8-1.2 | 0.8-1.3 | 1.0-1.5 |
| A50(Soft) | % | ≥5.0 | ≥6.0 | ≥8.0 | ≥10.0 |
| Peel Strength | A | N/mm | ≥0.8 | ≥1.0 | ≥1.2 |
| Chemical resistance | % | ≤5 |
| Oxidation Resistance | 200℃ | Min | 60 |
| Solder Resistance | 300℃ | Sec. | 20 |
| PINHOLE | EA | NONE |
| WIDTH | mm | 100-660 |
| Width Accuracy | mm | 0~ +2 |
| Core | / | 3 in, 6 in, 80mm |
Application
Rolled Copper Foil has extraordinary strength, bendability,
ductility and lustrous surface, plus its excellent mechanical
capacity, makes it irreplaceable as a raw material. Especially when
used for transformer, Copper Flexible Connector, CCL, FCCL, PCB,
Geothermal Film, Construction, Decoration etc.
