Ordinary zinc ribbon embrittles and fractures in cold-climate installation. Our proprietary heat-treatment preserves ductility deep into sub-arctic temperatures — the reel unspools straight onto the trench floor, on the coldest morning of a pipeline season.
See Cross-sectionsThe failure mode of ordinary zinc ribbon is well known in the industry — brittle fracture at the cold-rolling bend, splitting along grain boundaries, rejected by the CP engineer on the day of install.
We changed the heat-treatment cycle. Our ribbon retains its crystalline structure at −30 °C, bends without cracking, and stays conductive. Installed cold, performs cold.
Extruded from the same alloy, heat-treated identically. Choose cross-section by protection current demand — larger cross-section extends service life proportionally.
| Property | Specification | Test Method |
|---|---|---|
| Alloy System | Zn-Al-Cd series | GB/T 4950 |
| Electrochemical Capacity | ≥ 780 A·h/kg | ASTM G97 / GB/T 4950 |
| Open-circuit Potential | −1.10 ~ −1.05 V (Cu/CuSO₄) | GB/T 4950 |
| Current Efficiency | ≥ 95 % | GB/T 4950 |
| Ductility (min temp) | −30 °C, no fracture under 180° bend | Internal / DNV aligned |
| Core Wire | 1.0 / 1.5 / 2.0 mm steel, continuous | ASTM B418 |
Long linear runs needing distributed, uniform current rather than point-source anodes.
Annular ribbon rings under storage tank floors — stable potential over entire plating area.
Tube-bundle water-box protection where discrete anodes are geometrically impractical.
Hull-integrated grounding straps and cable armor protection in shipyard retrofits.
Share your trench geometry, alloy preference, and delivery window — we ship from stock on all three cross-sections.
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