Corrosion control — galvanic series
Galvanic series in seawater · vs SCE
The classical ladder every corrosion engineer pins on a wall. Pick an anode + cathode pair to see the EMF gap and galvanic-couple risk class. The bigger the EMF separation, the worse the bimetallic corrosion of the anode.
Couple analyser
Anode (anticipated)
Cathode (anticipated)
Result
EMF gap+0 mV vs SCE
Risk levelNEGLIGIBLE
Anode (active)Mild / carbon steel
Cathode (noble)—
Risk classes (after Roberge / NACE):
< 50 mV
negligible
50-150 mV
low
150-300 mV
moderate
300-600 mV
high
> 600 mV
severe
For the full quantitative model — area-ratio acceleration, electrolyte resistivity, Tafel mixed potential — use/console/galvanic.
Series ladder · seawater · 25 °C · vs SCE
Sources: ASM Vol 13 Corrosion · Roberge "Handbook of Corrosion Engineering" Ch. 6 · NACE Pub 7L107 · ranges reflect heat-to-heat scatter in flowing seawater. For galvanic-acceleration computation (area ratio, IR drop, Tafel mixed-potential) see the galvanic factor tool.