Or what is the most valuable metal? A few of the oldest known metals will be Gold, Silver, Copper, Iron, Tin and Lead and they are still the most useful and widely used metals.
Metals are solid definitely not transparent, they have luster and are heavy. I guess you could include Mercury as a metal yet this can be a liquid. Another is Solium, which is solid but very light in weight.
And I found that the most valuable metal is not the one most people think! Most people would say Gold, but they would be wrong. By the price per once yes, but you would be wrong in the event that you looked at using each, Iron has the most uses for it.
There are three forms which differ very much in their properties. There’s Cast-Iron easily fusible and really brittle. ลวดเชื่อมเงิน I remember dropping among my grandmothers lids off the coal stove that she employed to cook with and we had to buy a new one because, it was a form of cast iron and it could not be forged or welded.
Then there’s Wrought-Iron, fusible only at great temperatures, but can be hammered out toned, welded and drawn out in a form of wire. A friend of mine used to manage a wire rope manufacturing plant in Pennsylvania and I has been just amazed at what they might do with this metal, rendering it look almost like fabric rope, but many times the strength, it had been used to create bridges, elevators, tow barges and hold up water towers etc..
The next is Steel, the most wonderful matter we produce with Iron, it really is malleable and may be welded. The great property of Steel it acquires when tempered is an extremely hard degree of hardness.
A simple explanation of the metals is that probably the most noticeable feature is in the chemical composition of the various grades of iron may be the percentage of carbon it includes. Thus Pig-iron contains the most carbon, Steel the next lowest and Wrought-iron the least.