For buried pipelines, storage tanks, and soil-exposed infrastructure. High driving voltage and consistent electrochemical output — forged from raw ingot within driving distance of the mine.
See Product FormsHenan Province produces more magnesium ingot than any other province in China — and CathPro sits in the middle of that supply chain. We don't buy magnesium on commodity spot markets. We melt within a short drive of the primary smelter.
Twenty-five years at the source means our alloying chemistry is stable, our lead times are short, and our traceability is genuine — every ingot carries a lot number you can follow back to the melt.
Cast block geometry for direct burial, tank-bottom grids, and structural grounding. Four standard weight classes.
Magnesium core factory-packed in proprietary calcium-sulfate-bentonite backfill. Reduces installation labor and equalizes soil resistivity.
Extruded ribbon form for distributed, long-linear protection. Lay direct into trench alongside transmission main.
| Property | Specification | Reference |
|---|---|---|
| Alloy System | Mg-Al-Zn (M1C type) | GB/T 17731 |
| Electrochemical Capacity | ≥ 1230 A·h/kg (M1C high-potential) | GB/T 17731 |
| Open-circuit Potential | −1.75 ~ −1.55 V (Cu/CuSO₄) | GB/T 17731 |
| Current Efficiency | ≥ 50 % | GB/T 17731 |
| Driving Voltage (vs steel) | ~0.90 V | Calculated |
| Recommended Soil Resistivity | < 15,000 Ω·cm (pre-packaged); < 5,000 Ω·cm (bare) | Industry practice |
Gas / oil transmission with CP current demand where magnesium's high driving voltage overcomes high-resistivity soil.
Above-ground storage tank external floor plates — distributed anode arrays under the bund liner.
Municipal distribution networks, district heating pipework, reinforced-concrete water reservoirs.
Substation earth mats, transmission tower grounding, cable armor in low-conductivity soils.
Share the geometry, soil data, and design life — we return a complete anode arrangement with mill certificate sample within one business day.
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