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| Virgin vs Primary vs Seconday metal |
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| SavannahLion:
Once in a while, when browing catalogues for metal like copper, aluminum and steel I'll see a small notation denoting the metal as virgin, primary or seconday metal. After a lot of Googling, I finally figured out what the notations mean but not why. Outside of science experiments where purity of metal is needed or extreme applications where the composition of the metal is important, how does knowing the source of the metal influence your less than average joe like me? If I want a specific type of aluminum, why do I care where the aluminum content come from? Or whether the stainless steel uses recycled nickel? I can see this being crucial for something like brass due to the lead in older alloy blends but that's about the best I can figure... |
| lilshawn:
I'm more into Slayer, Fear Factory, Lamb of God and Battle Cross... but I'm always wiling to influence others into the ways of metal \m/ :lol |
| SavannahLion:
--- Quote from: lilshawn on October 15, 2015, 02:22:58 pm ---I'm more into Slayer, Fear Factory, Lamb of God and Battle Cross... but I'm always wiling to influence others into the ways of metal \m/ :lol --- End quote --- That's lips on the mic right? |
| Vigo:
Just a layman guess, but I am betting the types of impurities are different. I am guessing you might have metal that is weakened from certain impurities or has a different melting point or unwanted magnetic properties. I remember watching something on Japanese Katana making in the traditional methods, and where they got their ore from was critical for the smelting process. If the wrong impurites were in the ore, the swords would break and also be harder to shape. I guess if i was making something that I cared about quite a bit, I would prefer a very pure metal. Also, doesn't some impurities cause the metal to change color a bit differently? |
| pbj:
You know, there's an unwritten rule of the internet, and it's that the second metal comes up, someone brings up those damned katanas. Even more strange is that they are trotted out as either the best things ever made in human history, or as an example of crude metal working techniques employed to make the best of lousy ore. (probably about 3:1 on that) |
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