Metals in Seawater - Galvanic Series

Galvanic series in seawater at 25 ^oC (77 ^oF) are indicated below with the most noble at top.

• Platinum
• Gold
• Graphite
• Titanium
• Silver
• Chlorimet 3 (62 Ni + 18 Cr + 18 Mo)
• HASTELLOY®; alloy C (62Ni + 17 Cr + 15 Mo)
• INCONEL® alloy 625
• INCONEL® alloy 825
• Stainless steel, type 316 (passive)
• Stainless steel, type 304 (passive)
• Stainless steel, type 410 (passive)
• Monel alloy 400
• INCONEL® alloy 600 (passive)
• Nickel 200 (passive)
• Copper alloy C71500 (Cu 30% Ni)
• Copper alloy C23000 (red brass 85% Cu)
• Copper alloy C27000 (yellow brass 65% Cu)
• HASTELLOY® alloy B
• INCONEL® alloy 600 (active)
• Nickel 200 (active)
• Copper alloy C46400
• Copper alloy C46500
• Copper alloy C46600
• Copper alloy C46700 (naval brass)
• Tin
• Lead
• Lead-Tin solders
• Hastelloy A
• Stainless steel, type 316 (active)
• Stainless steel, type 304 (active)
• 50 - 50 lead tin solder
• Stainless steel, type 410 (active)
• Cast iron
• Wrought iron
• Low carbon steel
• Aluminum alloy 2117
• Aluminum alloy 2017
• Aluminum alloy 2024
• Cadmium
• Aluminum alloy 5052
• Aluminum alloy 3004
• Aluminum alloy 3003
• Aluminum alloy 1100
• Aluminum alloy 6053
• Galvanized steel
• Zinc
• Magnesium alloys
• Magnesium