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Why did Napoleon 3 use aluminum dinnerware?
Aluminum used to be more expensive than gold. In Napoleon's time the chemists hadn't discovered a good way to purify aluminum so pure aluminum was expensive and rare. Aluminum used to be a status symbol because it was more expensive and rarer than gold.
Why is aluminum more expensive then iron?
it's harder to make
What is the disadvantage of aluminum?
Aluminium is more expensive than steel
Which costs more aluminum or steel?
For homework: Aluminum is about 7 times more expensive than steel. A full answer: Basically: Aluminum is more expensive. And during 2011 is expected to go higher, because of less demand. Although the price of steel is constantly on the raise. BUT, in some cases making things from steel can turn out to be more expensive. Like boats. But again, in the usual case Aluminum is more expensive. How much more expensive depends: There are different kinds of steel. Also, it depends on how much material you'll need. Sometimes a small amount of aluminum will suffice for a much larger amount (in weight) of steel you would need for the same task. In that case making your project from aluminum will cost less than from steel. But the raw cost of steel is still cheaper than that of aluminum. (The reason is that aluminum, although more "abundant" - meaning found more on the surface of earth, is harder and therefore more expensive to retrieve). The most significant cost difference, is the cost of work: tools, knowledge and the price for fixing mistakes. Working with aluminum is much more expensive than steel. In 2002 (before the price rise of steel) it was 4.2 times more expensive to make a car from aluminum, than from steel. But then a comparison by a boat maker shows that its EASIER to work with aluminum, if you use its features to your advantage: (No need to paint submerged parts, build without bending, use standard profiles etc.) and easier to sell. And then it depends if you need to use new material or can use scrap. Today (March 2011) iron ore (the main part for making steel) is 4 and a half cents per pound, while aluminum is a dollar and 14 cents! 0.045 vs 1.14. That's Aluminum over 25 times more expensive than iron. (But then again, steel is about 3.5 times more expensive than iron, so aluminum is about 7.2 times more expensive now. Please understand that a shortage (like the one during the Chinese Olympics a few years ago) can make the price of steel rocket up, and change everything. So you never know what will be. But currently, Aluminum is more expensive. By the way, Mary Antoinette had a set of cutlery (knife, fork and spoons) from aluminum, that was at that time just discovered, and more expensive than silver.
Why is gold more expensive than aluminum?
More rare stronger and better looking
Are aluminum prices rising?
compared to a hundred years ago, no, as aluminum was more expensive than silver than.
Why is gold more expensive then aluminum?
because they make most all of the alluminum used
What is a disadvantage of using aluminum for cars?
Aluminium is more expensive than Steel
Is steel harder than aluminum?
AnswerThe question may better be written as, "Which steel is harder than which aluminum?" There are many grades of both, and some alloys of aluminum are actually harder than some grades of steel. For instance, 7075-T6 aluminum at 150 Brinell hardness is harder than low-carbon steel at 120 Brinell. Generally speaking, however, steel is harder than aluminum.
What type of aluminum are aluminum fishing boats made out of?
5052 H32 aluminum. its an Al/Mg allow resistant to corrosion.
What years did sears roebuck sell 12foot aluminum boats?
I have a 1965 - would be interested to find more info on it.
Why was aluminum more expensive than gold in 1886?
Aluminum does not occur in nature as a solid metal. It is produced by man in several processes which require lots of energy. These processes were not invented until the 1880's. So, until then, aluminum was scarcer than gold and therefore more expensive.
