This is the core of the zinc anode 620 datasheet. Do not purchase an anode without these values.
| Parameter | Value | Test Standard | |----------------------------|--------------------------------|---------------------| | Open Circuit Potential | -1.030 V (vs. Ag/AgCl/Seawater)| ASTM G97 | | Closed Circuit Potential| -0.980 V to -1.010 V (vs. Ag/AgCl) | ASTM G97 | | Effective Current Capacity | 780 A·hr/kg (minimum) | NACE TM0190 | | Actual Consumption Rate | 11.8 kg/A·year | Theoretical | | Anode Efficiency | 95% (Minimum) | NACE TM0190 | | Driving Voltage (vs Steel)| 0.25 V (Seawater) | N/A | zinc anode 620 datasheet
| Standard | Equivalent Code | | :--- | :--- | | MIL-DTL-18001 | Type 620 (Frame) | | DNV-RP-B401 | ZHS (Zinc Hull Small) | | ISO 15589-2 | Zn-Alloy A | This is the core of the zinc anode 620 datasheet
Technical Data Sheet (TDS) – MIL-DTL-18001 & ASTM B418 Compliant Composition (Type II - Galvanizing):
In the world of cathodic protection (CP), few components are as vital or as misunderstood as the sacrificial zinc anode. Among the standard shapes and sizes, the Zinc Anode 620 (often referred to as the “620 profile” or “620 brace”) is a workhorse for the marine, offshore, and underground storage industries. If you are looking for the definitive zinc anode 620 datasheet, this guide provides full technical specifications, electrochemical performance data, and installation criteria.
Many Chinese and European manufacturers use "620" as a model number, not a dimension.