1. It does not need any coating to prevent from rust.
2. It has high hardness,
malleability, strength than iron.
No. Steel is mostly iron.
Steel is made of iron to which is added between 0,02 % and 1.67 % of carbon.If you go over 2% of carbon, you'll get cast iron instead of steel.
John Deere
I think they use steel because, the instruments would rust if it was iron & germs would transfer.
In a steel mill and in products manufactured using steel. Steel is not a naturally occuring substance. It is a product of iron and carbon.
not much except its better than bronze, iron and steel. ~Angelsblade0~
Iron or steel. Since it is a magnet, a compass will point to iron instead of pointing North.
Steel is made of iron to which is added between 0,02 % and 1.67 % of carbon.If you go over 2% of carbon, you'll get cast iron instead of steel.
steel is stronger than iron because people use steel to build more things that iron Iron is typically a mixture of carbon, iron and other impurities such as sulfur and phosphorus. These materials tend to make iron difficult to shape and lacks ductility. Steel is essentially pure iron that has all the impurities removed and then has small amount of alloying material added such as manganese and carbon. Most things that are made of steel are made of what is called low alloy steel. This would include cars, appliances, road signs, oil gas and water pipe, and most construction material. Specialized steel has more alloys added and is used for specialized applications. An example would be corrosion resistant steel such as Corten (a trademark material from US Steel) which was used to construct the stadium in Hawaii where the NFL Pro Bowl is played. This material does not rust. Stainless steel will resist almost all corrosion and much more alloying material, usually chromium and nickel, for example, 18-8 stainless which is 18 % chromium, 8 % nickel, and the rest is primarily iron. Iron can be cast into some items such as trucks for railroad cars and crankshafts for engines. It is hard and wear resistant but cannot be stretched or shaped like steel because it is not ductile. From a chemistry point of view iron is a pure element and steel is an alloy consisting of primarily iron mixed with other materials. The discussion above details the common description we have of iron and steel.
Iron can rust. Actually it is because the iron is not strong enough to be able to handle the pressures that steel can. Pure iron is to soft and weak to be of any use and the iron from the blast furnace has too much carbon in it to be useful. That is the real reason
Electric arc furnace steel-making in the United States, which accounted for 43 percent of total steel making in 1993 and does not use iron ore, is the technology most often used by minimills That re-uses existing iron and steel, and rightly so, but the world still needs to extract iron from its ore, so there's not really an alternative to using iron ore.
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