The 620 designation typically refers to a large, weld-on or bolt-on sacrificial anode commonly used in heavy-duty offshore environments. These are not your standard small-boat anodes; they are engineered for long-term protection of hulls, piers, and underwater pipelines.
If you can provide the or a photo of the old anode , I can help locate the exact datasheet. zinc anode 620 datasheet
One specific model frequently encountered in marine specifications is the . While the name might sound like a simple part number, the datasheet attached to it contains critical data that ensures safety and compliance. The 620 designation typically refers to a large,
The most critical aspect of any zinc anode is its purity. If the zinc contains too many impurities (like iron or lead), it will develop a passive film and stop working. If the zinc contains too many impurities (like
Solution Potential: -1.05 Volts vs. Ag/AgCl reference electrode Key Applications
By acting as a "sacrificial" metal, the 620 anode oxidizes more easily than the steel structure it is protecting. This process ensures that the anode corrodes away while the expensive infrastructure remains intact. Technical Specifications and Chemical Composition