External Casing Anode
Application of Magnesium Sacrificial Anode:
The magnesium anode is characterized by small density, big theory electric capacity, low potential negative polarization rate and large driving voltage for iron and steel (> 0.6 V). Magnesium sacrificial anode is suitable for the protection of metal components in soil and water, where the electrical resistivity is higher. Our magnesium anode is mainly used for anticorrosion of buried pipelines, onshore platforms, huge boilers and steel structures.
Chemical Composition of Alloy (%)
| Grade | Mg | Al | Zn | Mn | Si | Cu | Ni | Fe | Other impurities (max) | |
| (max) | (max) | (max) | (max) | Each | Total | |||||
| MGAZ31B | Balance | 2.5-3.5 | 0.6-1.4 | 0.2-1.0 | 0.08 | 0.01 | 0.001 | 0.003 | 0.05 | 0.30 |
| Grade | Al | Zn | In | Cd | Si | Cu | Fe | Other impurities (max) | |
| (max) | (max) | (max) | Each | Total | |||||
| AlZnInCd | Balance | 2.5-4.5 | 0.018-0.050 | 0.005-0.020 | 0.10 | 0.10 | 0.15 | 0.02 | 0.10 |
Electrochemical Properties
| Grade | Open-circuit voltage (-v respect to Cu/CuSO4) | Closed-circuit voltage (-v respect to Cu/CuSO4) | Actual capacity (Ah/kg) | Current efficiency % (Cu/CuSO4) |
| MGAZ31B | 1.57-1.67 | 1.47-1.57 | ≥1210 | ≥55 |
| Grade | Open-circuit voltage (-v respect to Ag/AgCl) | Closed-circuit voltage (-v respect to Ag/AgCl) | Actual capacity (Ah/kg) | Current efficiency % (Ag/AgCl) |
| AlZnInCd | 1.10-1.18 | 1.05-1.12 | ≥2400 | ≥85 |
Dimensions
Machining and Testing Equipment
Related Products
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