I am worried about galvanic corrosion in a cooling system that contains aluminum and another metal (stainless steel or copper). Which one would cause the aluminum to corrode the quickest?
2007-04-06 02:46:28 · 3 answers · asked by AskBrian 4 in Science & Mathematics ➔ Engineering
It depends on what stainless you are using (as well as what aluminum alloy). Go to the link posted below. It's a galvanic potential chart listing a lot of metals, including copper, various stainless steels, and various aluminum alloys. Find your three alloys, and whichever one is furthest away on the chart from aluminum will cause worse corrosion.
It looks like unless you are using 410 or 430 stainless, copper will cause worse corrosion.
2007-04-06 03:01:13 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The most common stainless steel alloys (18-8) or the 300 series would be much less corrosive to aluminum and its alloys than copper and its alloys.
2007-04-06 09:25:13 · answer #2 · answered by Bomba 7 · 0⤊ 0⤋
Depending on what your using it for. Stainless steel is much stronger in strength seeing Aluminum has it's weak points and can bend under stress, and is also weak under large amounts of heat. I use stainless steel bolts and nuts for my exhaust systems, and starters on my truck, and they still haven't rusted as of yet.
2016-04-01 00:27:03 · answer #3 · answered by ? 4 · 0⤊ 0⤋