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MythicQuale
Reputation Activity
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MythicQuale reacted to Bimetallic in Metals vulnerable to staining/tarnishing ordered by least to most resistant?
That article is bogus. All their photo examples are non-pure gold, while talking about pure gold's properties... The American Double Eagle coin they feature is only 90% gold, balance copper. The Krug is 91.7% gold (Crown gold), balance copper. So what are they talking about? It's weird.
Their Roman example might be 99% gold, but it varied and lots of emperors issued those coins for a roughly 400+ year period. I wouldn't expect modern standards of quality control with 2,000 year old coins, even Roman ones...
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MythicQuale got a reaction from MetalsMan in Metals vulnerable to staining/tarnishing ordered by least to most resistant?
Out of silver, gold, palladium, iridium, platinum, titanium, stainless steel, aluminum, chromium, and rhodium (maybe chuck in brass, tungsten, osmium and copper for fun), can anyone help list these metals in order of susceptibility to corrosion, staining, rusting, and tarnishing for long term storage in 'average' air?
I'd love to know how they all compare against each other and it may influence my own storage of some of these metals.
Here's six to get started. I'd love know where the others fit in. Warning, there may be errors in the ordering as I did very little research to obtain these!
Metals listed by least to most resistant to corrosion:
Iridium. Notes: "Iridium is the most corrosion-resistant material known. " (source)
Platinum: This is apparently lower in reactivity than gold (source). However I don't think "reactivity" necessarily equates to "most likely to rust" etc.
Gold
Silver
Copper
Aluminum
Osmium. Notes: "Osmium is the hardest of the group and has the highest melting point, but its ready oxidation is a limitation." (source)
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MythicQuale got a reaction from GoldDiggerDave in Will we see a boom in precious metals with the potential future roll out of UBI?
Excellent point. This is why I think cryptos and precious metals are a good solid investment. Both take up minimal room/weight and/or resources, and more can't just be printed if the banks/FRS decide to on a whim.
I'm not totally against the idea of a UBI, especially as robots start taking our jobs and where welfare discourages people from looking for work (why would they if they'll stop receiving benefits once they find a job?), but one can't rule out the risk of the UBI increasingly over time, where even hyperinflation could set in or at least the gross devaluation of the pound.
