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Galvanic Corrosion Information

Noble (Least Corrosive)
Platinum
Gold
Graphite
Silver
Stainless steel, type 316 (passive)
Stainless steel, type 304 (passive)
Titanium
Stainless steel, type 410 (passive)
7Ni-33Cu alloy
75Ni-16Cr-7Fe alloy (passive)
Nickel (passive)
Silver solder
M-Bronze
G-Bronze
70-30 cupro-nickel
Silicon bronze
Copper
Red brass
Aluminum bronze
Admiralty brass
Yellow brass
76Ni-16Cr-7Fe alloy (active)
Nickel (active)
Naval brass
Manganese bronze
Muntz metal
Tin
Lead
Stainless steel, type 316 (active)
Stainless steel, type 304 (active)
Stainless steel, type 410 (active)
Cast iron
Mild steel
Aluminum 2017, 2024, 2117
Cadmium
Alclad
Aluminum 1100, 3003, 3004, 5052, 6063
Galvanized steel
Zinc
Magnesium alloys
Magnesium
Anodic (Most Corrosive)
  • The Galvanic Corrosion table is a measure of how dissimilar metals will react in sea water.
  • Generally, the further apart items are on the table the greater the galvanic corrosion that will result.
  • The material closest to the anodic end will corrode more rapidly.

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Phone: (800) 704-2157 OR (206) 285-8603
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Seattle, WA 98119

Since 1998, OnlineMetals.com has been the Web's dependable online metal store for small quantity metal orders including metal orders by phone and complete metal sales and support. OnlineMetals' wide selection of industrial metals includes aluminum, copper, brass, stainless steel, bronze, hot roll steel, cold roll steel, titanium, tool steels, invar, and most industrial plastics. OnlineMetals specializes in cut to length materials, so you buy only what you need, and there are no minimum orders. Same day UPS shipping for orders by noon.