Within the scope of alloying one can speak of a huge number of alternatives, which continues to increase with advancing technology is to understand that the objective of this effort is to obtain a product having the properties of one or the predominant another metal, such as corrosion resistance, dimensional stability, ability to be machined, weight, toughness, etc.. Evidently the combination of one or more elements by themselves predict these properties is required, also a very specific method to achieve this purpose. As you know the steels are alloys of iron and carbon concentrations of the latter maximum 2% by weight, depending on the variable they can be classified as follows: low-carbon steels:
They have a smaller percentage than 0.25% C, these elements are useful in the manufacture of many parts forming presses and sheet metal vehicle bodies, etc, it is clear that their use to be so broad may include components of all machines and / or equipment used by man, sometimes as allies with elements to improve their resistance properties thus creating the so-called high-strength steels, low alloy, another common characteristic of these elements is its ductility and malleability. half coal: The coal share of these elements is between 0.25% and 0.6% C preferably are elements used in mechanical strength is required, such as wheel guides and road equipment final drive of high-carbon steels: The percentage reaches a , 4% from 0.6% C steels are very resistant they are allied with elements such as manganese, chromium punches are cut and fitted to shearing, and are generally used as tools.
Stainless Steel: These are what they are alloyed with chromium, to prevent the normal tendency to form iron oxides for this reason are often costly in the domestic market is in two grades Steel Steel 306 and 304, the difference being the quality of alloy and specific applications for food first. Foundries: known as Iron can be found in various classifications such as gray, white, nodular and malleable have carbon contents in excess of 2% to 4% reach, its application is in engine blocks and it is usual to see her on the covers and gratings machinable sewer .- They have their usefulness in the manufacture of precision machinery thanks to very good dimensional tolerances is obtained with the help of machine tools, this is achieved using S, Bi and Pb. Steels for cold stamping .- useful in manufacturing hardware and great production elements. .-
Spring steels are resistant to fatigue and a high yield strength low alloy steels .- Ultraresitentes has significantly fewer of alloying elements, but its strength is far superior to non-allied steels this is achieved by optimizing manufacturing processes. .