| Galvanic Series in Salt Water Scale of Nobility: least noble to most noble |
|
|
Anode or base end ( + ) 1. Magnesium 2. Mg alloy AZ-31B 3. Mg alloy HK-31A 4. Zinc (hot-dip, die cast, or plated) 5. Beryllium (hot pressed) 6. Aluminium 7072 clad or 7075 7. Al2014-T3 8. Al 1160-H14 9. Al 7079-T6 10. Cadmium (plated) 11. Uranium 12. Al 218 (die cast) 13. Al 5052-0 14. Al 5052-H12 15. Al 5456-0, H353 16. Al 5052-H32 17. Al 1100-0 18. Al 3003-H25 19. Al 6061 -T6 20. Al A360 (die cast) 21. Al 7075-T6 22. Al 6061-0 23. Indium 24. Al 2014-0 25. Al 2024-T4 26. Al 5052-H16 27. Tin (plated) 28. Stainless steel 430 (active) 29. Lead 30. Steel 1010 31. Iron (cast) 32. Stainless steel 410 (active) 33. Copper (plated, cast, or wrought) 34. Nickel (plated) 35. Chromium (plated) 36. Tantalum 37. AM 350 (active) 38. Stainless steel 310 (active) 39. Stainless steel 301 (active) 40. Stainless steel 304 (active) 41. Stainless steel 430 42. Stainless steel 410 43. Stainless steel 17-7PH 44. Tungsten 45. Niobium (columbium) 1%Zr 46. Brass, yellow, 268 47. Uranium 8% Mo |
48. Brass, naval (Tobin), 464 49. Yellow Brass 50. Muntz metal 280 51. Brass (plated) 52. Nickel-silver (18% Ni) 53. Stainless steel 316L (active) 54. Bronze 220 55. Copper 110 56. Brass, red 57. Stainless steel 347 58. Molybdenum, commercial pure 59. Copper-nickel 715 60. Brass, Admiralty 61. Stainless steel 202 (active) 62. Bronze, phosphor 534 (B-1) 63. Monel 400 64. Stainless steel 201 65. Carpenter 20 (active) 66. Stainless steel 321 (active) 67. Stainless steel 316 (active) 68. Stainless steel 309 (active) 69. Stainless steel 17-7PH (passive) 70. Silicone bronze 655 71. Stainless steel 304 (passive) 72. Stainless steel 301 (passive) 73. Stainless steel 321 (passive) 74. Stainless steel 201 (passive) 75. Stainless steel 286 (passive) 76. Stainless steel 316L (passive) 77. AM355 (active) 78. Stainless steel 202 (passive) 79. Carpenter 20 (passive) 80. AM355 (passive) 81. A286 (passive) 82. Titanium 5A1, 2.5 Sn 83. Titanium 13V, 11Cr. 3A1 (annealed) 84. Titanium 6A1, 4V (solution treated and aged) 85. Titanium 6A1, 4V (annealed) 86. Titanium 8Mn 87. Titanium 13V, 11 Cr3A1 (solution heat treated & aged) 88. Titanium 75A 89. AM350 (passive) 90. Silver 91. Graphite 92. Gold 93. Platinum Cathode or noble end ( - ) |
| Note: For any combination of dissimilar metals, the metal with the lower number will preferentially corrode (act as an anode) and protect the metal with the higher number (cathode). | |
| Text and photos Copyright © 2009 SMEX. All rights reserved. | |
If you cannot see the menu bar and logo at the top of the screen click here.