Galvanic Series: stainless_steel
Galvanic (electrochemical) series for metals and alloys in flowing seawater at ambient temperature (10–30°C). Electrode potential ranges in volts vs SCE (saturated calomel electrode), galvanic group assignments, nobility rankings, anodic index values, and compatibility thresholds for 49 materials. Covers magnesium alloys, zinc, aluminum alloys, carbon steel, cast iron, stainless steels, copper alloys, brasses, bronzes, nickel alloys, titanium, and noble metals. Used for galvanic corrosion compatibility design and sacrificial anode selection.
| material category | material name | anodic index V (V) | galvanic group | nobility rank | notes | potential max V SCE (V) | potential min V SCE (V) | potential typical V SCE (V) |
|---|---|---|---|---|---|---|---|---|
| stainless_steel | Duplex 2205 (passive) | 0.3 | 11 | 38 | 22Cr-5Ni-3Mo; excellent in seawater when passive | -0.02 | -0.15 | -0.08 |
| stainless_steel | Stainless steel 17-4PH (passive) | 0.33 | 11 | 37 | Precipitation hardened; passive in moving seawater | -0.03 | -0.17 | -0.1 |
| stainless_steel | Stainless steel 304 (active) | 0.7 | 7 | 20 | Austenitic SS; active state in crevice/stagnant seawater | -0.43 | -0.53 | -0.48 |
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